Category
Air handling and refrigerating machinery
Apparatus
Building and mining machinery, machinery for building materials, glass and ceramics
Central heating and ventilating engineering
Chipless forming and machining
Constructionâ and builder's carpentry and joinery
Environmental engineering
Fittings and valves
Furniture
General engineering
Heating, cooking and hot water equipment for the household
Industrial furnaces, laboratory furnaces incl. Combustion furnaces burners and firing systems
Lifting and conveying equipment
Locomotives and other rolling stock, incl. Stationary rail material, railway signaling and safety installations
Machines for the food and stimulant industries, packaging machinery
Packings, small containers and sealing caps
Parts, components and systems for the automotive supply industry
Plants (factories), turnkey planning â construction â delivery
Power transmission engineering
Prime movers and sets
Services
Sheet metal and other metal products
Steam and heating boilers
Steel construction and shipbuilding
Steel pipes, pipe fittings, pipe joints
Surface refinement and thermal treatment
Woodworking machinery
Air conditioning units
Dryers for wood, paper pulp, paper or paperboard
Evaporating or drying machinery and equipment
Fans (other than table, window or aeration fans), ventilation plants
Machinery and apparatus for distributing, spraying or atomizin of vapour, liquids or solid matter
Ventilating or recycling hoods (other than domestic air domes)
Welding and soldering (brazing) machines and apparatus, also for flame cutting, machines and apparatus for autogenous surface hardening
Distilling and rectifying apparatus and equipment
Filtering or purifying machiner and apparatus for liquids (mechanical, chemical, permanent magnet, electro magnet etc.) incl. water softening apparatus, water purifyers, filter presses, oilâ or petrolâfilters for internal combustion engines, vacuum drum f
Gas filtering or purifying machinery and apparatus
Heat exchangers
Machinery and equipment for heating, cooking, roasting, steaming, pasteurizing, condensing or cooling
Machinery for sorting, screening, separating or washing earth, stone, ores or other solid mineral substances
Pileâdrivers and pileâextractors, snowâploughs and snowblowers, other selfâpropelled machines for earthwork, street and sewer cleaning machines municipal waste collect ing cars
Central heating and ventilating engineering
Drawn parts
Edgedâ and cut parts
Processings, other
Stamped parts
Welding parts
Construction elements
Other construction and expansion elements and other iron and steel constructions (scaffoldings, formwork or supporting structures, gangways, landing stages, pallets and pallet racks, working platforms, loading and unloading ramps, hydraulic steel structur
Clean air
Environmental energy plants â biomass
Mechanical engineering and metalware, parts
Services
Waste & soil
Waste water & water treatment
Other fittings and valves and similar appliances (with the exception of heating elements and sanitary accessories)
Piston valves with handwheel
Pressure reduction valves
Safety and pressure control valves
Valves for oilâhydraulic and pneumatic energy transmission
Valves, nonâreturn and swing check valves
Other furniture
Fire extinguishing and fire protection equipment
Measuring or checking machines, appliances and instruments machines for balancing mechanical parts
Other machine parts
Other mechanical products, special purpose machinery
Heating equipment for solidâfuel
Automatic burners, mechanical stokers, mechanical grates, mechanical ash dischargers and similar appliances
Combustion furnaces
Parts for burners and firing systems
Handling equipment for storage, feed, sorting, transfer, loading, positioning, industrial robots, transfer systems, assembly systems, control systems, automated manufacturing systems, etc._x000D_
Other special conveying installations (e.g. locomotive or wagon traversers, wagon and mine wagon tippers, wagon pushers, container and pallet loading platforms, palletizing machines etc.), fork lift trucks
Parts for pneumatic and other continuousâaction elevators and conveyors, teleferics, chairâlifts and skiâdraglines or other special conveying installations
Pneumatic elevators and conveyors, continuousâaction, for all kind of goods and materials, also for underground use, bucketâtype, beltâtype and with other conveying devices, swivellin roller tables, pusher cable and pusher chain conveyors etc.
Parts for locomotives and railcars, incl. pneumatic door operating systems
Parts for rolling stock
Railway and tramway maintenance or service vehicles, incl. selfâpropelled vehicles, e.g. workshop wagons, cranes, ballast tampers, trackliners, testing coaches, track inspection vehicles gang cars etc.
Railway or tramway track fixtures and fittings, signalling, safety or traffic control equipment for railways, tramways, streets and roads, parking facilities, harbour or airfield installations, mechanical or electromechanical
Machinery for cleaning or drying bottles or other containers dish washing machines
Containers for compressed or liquefied gas, of iron, steel or aluminium
Containers, incl. those designe for transporting liquids, speciall designed and equipped for one or more means of transport
Reservoirs, tanks, vats and similar containers for any material, of aluminium, of a capacity exceeding 300 l, whether or not lined or heatâinsulated
Reservoirs, tanks, vats and similar containers for any material, of iron or steel, of a capacity exceeding 300 l, whether or not lined or heatâinsulated
Small containers
Motor vehicle accessories
Factories and plants for wood processing industries workshops, including training centres
Gas, water, longâdistance, resp district heat and refrigerant supply plants
Loading, unloading, storage and tapping plants
Other specialâpurpose plants
Plants for the chemical and pharmaceutical industries
Power stations and other energy plants
Waste and refuse disposal and recycling plants for industrial and municipal purposes
Clutches and other shaft couplings, brakes, including universal joints
Other engines and motors (e.g. reaction engines, hydraulic and pneumatic power engines or motors [cylinders], wind power engines, piston steam engines, steam engine etc.) nuclear reactors and nonâirradiated fuel elements
Other services
Planning, engineering and maintenance services, consulting, training, general contracting services etc.
Repair, assembly and similar work
Sheet metal and other metal products
Sheet metal products
Condensers for steam power units
Hotâair generators and distributors (for space heating and drying of feed, cereals etc.)
Other vapour generating boilers, including hybrid boilers
Superâheated water boilers and hot water equipment
Watertube boilers with a steam production not exceeding 45 t&h
Bridges, bridge structures and bridgeâsections
Leisureâtime installations, e.g merryâgoârounds, swingboats, circusses etc.
Prefabricated buildings of iron or steel
Towers and lattice masts
Pipe dult fittings
Pressure, resp. highâpressure pipelines and line pipes, of iron or steel, e.g. for mineral oil or gas; casings, tubings and drill pipes, of a kind used in drilling for oil or gas
Seamless pipes
Welded pipes
Coating
Embossing
Splitting, slicing, chipping, paring, cutting, trimming and punching machines, disintegrating machines
Air conditioning plants according to clients' specifications
Air cooling plants
Airset air handling units (boxâtype design), according to clients' specifications
Computer room air conditioning plants
Liquid cooling systems (cooling by refrigerating machines)
Roofâtop central air conditioning units
Water chillers for industries and air handling purposes
Air handling equipment for the paper and pulp industry
Dehumidifying plants
Driers for liquid gas, e.g. NH3 propane, butane gas
Evaporators for liquid gas, e.g NH3, propane, butane gas
Chip fans
Fans
Flue gas fans
Plastic fans
Ventilation plants according to clients' specifications
Ventilation plants, made of plastic
Ventilation plants
Ventilation units
Humidifying plants
Paint and varnish spraying booths with integrated dry filters
Paint and varnish spraying booths with integrated exhaust equipment
Paint and varnish spraying booths with waterâsprinkled walls
Paint and varnish spraying plants, also combined with exhaust ventilation and drying equipment, for cars, machines, furniture, parts, etc.
Paint and varnish spraying wall
Spraying booths
Air exhaust plants
Air handling equipment accordin to clients' specifications
Air supply plants, with and without air preheaters
Exhaust covers made of plastic
Vapour exhaust domes&hoods for kitchens
Ventilating equipment for swimming pools
Ventilation and exhaust element for airâraid shelters
Welding tables with integrated exhaust unit
Apparatus for the chemical and petrochemical industries
Apparatus for the mineral oil (petroleum) industry
Equipment for biochemical plant
Glass fiber reinforced reactors and agitating vessels
Aerated greasetraps
Aerated grit chambers
Automatic rake screens
Biological sewage treatment plants, container and package type for domestic and industrial waste water
Condensate separators
Container sewage plants
Cooling water systems
Cyclones
Filter screens
Filtering plants
Filters for diesel engines
Filters for petrol engines
Filters
Filtration equipment
Flotation plants
Fuel filters for petrol engines
Grit washers
Oil filters
Oil separators
Parallelâplate interceptors
Rabble rakes for static sludge thickening
Rotating drum screens for sewag preâtreating
Separators according to clients specifications
Skimmers
Sludge scrapers for sludge moving and collecting in sewage treatment tanks
Suction dredges for sludge moving and collecting in sewage treatment tanks
Water separators, automatic Water traps, automatic
Absorption filter
Absorption plants
Air filters for diesel engines
Air filters for petrol engines
Air filters for railway braking equipment
Air filters of various kinds
Air treatment plants of various kinds
Apparatus for purifying crude gases by thermical or catalytical processes, in steel or chrome nickel steel (RNO resp. TNV plants
Bag filters of various systems
Bio scrubbers
Biofilter, mobile and stationar
Biofilters
Cartridge filters
Ceiling filters
Central vacuum cleaning plants for buildings of all kinds
Clean rooms (clean work benches etc.)
Condensating plants
De NOX plants
Dropâseparators
Dust filters for railway brakin equipment
Electric filters
Exhaust air purifying and deodorizing plants, biological, mobile and stationary
Exhaust gas purification plants
Exhaust plants for workplaces and machines (chips, dust)
Exhaust plants for workplaces and machines (vapours, smoke, flue gas, etc.)
Exhaust plants, mobile
Extraction plants
Filter houses
Filters in longitudinal and cross row
Flue gas dedusters
Flue gas dedusting plants of various kinds
Flue gas dedusting plants with bag filters
Flue gas dedusting plants with cyclone separators (centrifugal separators)
Flue gas dedusting plants with pocket filters
Flue gas dedusting plants with tissue filters
Gas purifying plants for all kind of gases, such as natural gas propane, butane, etc.
Glass fiber reinforced flue gas cleaners
Grinding tables with exhaust unit
Grinding tables with integrated exhaust unit
Industrial vacuum cleaners, als mobile
Jet compact filters
Jet hopperâtop filters
Jet row filters
Lamellar separators
Mat filters
Natural gas filters
Oil bath air cleaners
Paint mist exhaust plants
Scrubber
Smoke and flue gas ejectors for fire brigades
Tube filters
Waste air purification plants
Waste gas and exhaust air purifying plants (thermical, catalytical)
Waste gas purifying plants
Working tables with integrated exhaust and air recycling units
Worm filters
Bareâtube heat exchangers
Condensation heat exchangers
Fintype heat exchangers
Gasâtoâgas heat exchangers
Gasâtoâliquid heat exchangers
Heat exchanger stations
Heat exchangers for all purposes, made of ordinary carbon steel
Heat exchangers for cooling gases (gas coolers)
Heat exchangers for district heating
Heat exchangers for oil
Heat exchangers for steam&water water& water, refrigerant NH3&wate
Heat exchangers for steam, oil, water, etc.
Heat exchangers for steam
Heat exchangers for waste gas
Heat exchangers, high and low pressure
Heat exchangers, made of hotâdi galvanized or stainless steel
Heat exchangers, suited for all heat transferring agents (gases, fluids, liquid metals)
Heat exchangers
Heat recovery plants according to clients' specifications
Heat recovery plants for the recovery of heat from exhaust air
Heat recovery plants
Heat recovery units in refrigerating systems
High fine tube heat exchangers
Highâpressure heat exchangers
Stainless steel heat exchangers
Steamâwaterâconverters
Straight tube heat exchangers
Tube (pipe) heat exchangers
Tube or plateâtype heat exchangers made of chrome nickel steel
Tubular heat exchangers (shell and tube heat exchangers), vertica or horizontal, in singleâ or multiâpass design, made of steel, stainless steel or nonferrous metals
Tubular heat exchangers
Uâtube heat exchangers
Apparatus for the paper and pul industry
Drumâtype screening machines
Heavy fraction separators, ballistic
Abattoir waste cars
Abattoir waste collecting cars
Highâpressure flushing and suction vehicles
Hospital waste collectors
Recycling suction trucks
Refuse collecting cars
Sewer flushing machines
Sludge suction equipment
Sludging appliances
Street sweepers
Street washing machines
Super suction trucks
Waste glass collecting cars
Central heating and ventilating engineering
Deep drawn parts
Draw parts
Edged parts
Drawing
Spot welding
Stamping and punching
Trimming
Welding with weldingârobot
Welding
"Punchâparts " stampings
Stamped and bent parts
Welding parts
Ascents made of steel or stainless steel
Building elements of special steel
Chimneys made of steel or stainless steel, with or without insulation
Components made of sheet metal
Glass fiber reinforced chimneys
Metal constructions
Railings of various kinds
Steel chimneys
Boiler supporting steelwork elements
Heavyâduty shelves
Moulds for encasings for the concrete industry made of steel
Racks of various kinds
Screen presses
Specialâtype structures
Stages (platforms) of various kinds
Stages
Steel construction elements and structures of various kinds
Structural and architectonical steel construction
Transportation pallets
Weldments of various kinds
Denoxing plants
Electrostatic filters
Exhaust air and filter units
Exhaust air cleaning systems
Filter plants
Filters
Spray booth facilities
Thermal waste gas cleaning systems
Ventilation systems
Biomass energy systems
Cogeneration plants
Firing systems
Steam boilers
Charging systems for power plants
Containers
Conveyor screws
Crushers
Elevators
Fans
Fittings and valves
Gas pressure regulators
Heat exchangers
Liquid fuel supply plants
Pipelines
Push grate furnaces
Underfeed stokers&reciprocating grate stocker
Domestic waste treatment
Industrial waste treatmant
Biowaste treatment and composting plants
Composting technology
Gas processing plants
Mixing plants
Refuse collector vehicles
Sorting plants
Waste separation bins
Separators
Sewage treatment plants, âcomponents
Sewer cleaning vehicles
Water and waste water treatment
Butterfly and lifting valves for air handling technology, up to 8° C temperature range
Fittings and valves made of plastics
Gas failure devices for firing installations and gas reducing stations
Gas pressure regulators for municipaliity, trade and industry
Pressure regulators, combined, with safety shut off valve
Pressure transformers (pressure intensifiers) for railway braking equipment
Antiâsliding (antiâslip) valves for railways
Pressure control valves for air handâ ling plants resp. pipelines, temperaâ ture up to 2° C, pressure up to 5 mbar
Safety blowâoff valves
Safety shutâoff valves and pressure conâ trollers for gas, nominal diameters DN 25 â DN 5, PN 16 â PN 1
Safety valves for railway braking equipâ ment
Air spring valves for the braking equipment of locomotives and railcars Pneumatic spring valves for the brak ing equipment of locomotives and railcars
Antiâskid valves for railways
Control valves for railways
Driver's brake valves for locomotives and railcars
Electropneumatic valves for the braking equipment of railcars
Loadâcontrolled brake valves fo railways
Triple valves (control valves)
Valves, electropneumatic, for railways
Isolating valves (stop cocks) for locomotives and railcars
Nonâreturn valves (check valves)
Return valves (check valves) for railway braking equipment
Stop cocks for the braking equipment of locomotives and railcars
Pulverizing chamber equipment
Spark extinguishing systems
Gas measuring stations
Components of stainless steel
Glass fiber reinforced moulded parts
Sound absorbers
Access control and identification systems
Apparatus according to clients' specifications
Apparatus, made of plastics, according to own designs, resp. clients' specifications
Equipment for police&security forces
Gas mixing plants
Gas odorizing plants
Hand scanners
Natural gas reducing stations
Passâthrough scanners
Pig stations
Security technology
Sound absorbing cabinets resp. containers
Sound absorbing equipment
Tennis ball collecting machines
Tennis ball throwing machines
Waste compactors
Hotâair stoves
Sawdustâfuelled stoves
Sliced wood heating systems
Biomass firing plants
Chip firing systems (sawdust firing systems)
Firing systems of all kinds
Forward feed grate firing systems
Gas firing systems for central heating installations
Impute firing systems Underfeed stokers Underfeed firing systems
Oil firing systems for central heating installations
Underfeed stokers (firing systems) for waste wood
Reâcombustion plants
Waste wood combustion plants
Wood and bark firing plants
Parts of firing and combustion systems, respectively
Cantilever type shelves
Hardware racks, compartment shelves
High racks
Household racks
Pallet frames
Pallet racks
Pallets
Plugâin racks
Steel racks
Storage room furnishings
Transport racks
Bunker reclaiming cars, mobile
Container displacing installations
Dumpâtype lift devices
Acceleration belt conveyors for chairâlifts
Apron conveyors
Bag (sack) conveying systems
Belt conveyors, mobile
Belt conveyors
Bulk material conveying plants
Bunker and silo equipment for bark, ashes and sewage sludge
Bunker reclaiming wheels, stationary
Cellular wheel feeders (star feeders)
Charging equipment
Conveying and storage plants fo hazardous hospital waste
Conveying and transferring equipment for silos and storage sheds, complete, for cereals, maiz and loose mineral fertilizers
Conveying and transferring plants
Conveying plants for coal
Conveying plants for hospitals, laundries, etc.
Conveying plants for sewage sludge
Conveying plants for special purposes
Conveying screws
Conveying systems for metallurgical plants and rolling mills
Depositing conveyor plants
Elevators
Garbage conveying plants
Package distributing conveyors (conveying plants)
Piece good conveyors
Refuse disposal systems
Roller conveyors
Sand dressing and conveying plants according to clients' specifications
Scraper conveyors
Silo (bunker, hopper) discharging screws
Silo discharging equipment (for sawdust, bark and chops)
Silo discharging equipment
Slewing (swivel) conveyors
Spiral conveyors
Stackers
Steeply inclined conveyors
Brake systems, including all accessories, for locomotives and railcars
Deformation elements â crash protection, prevent damage or deformation of the vehicle frame in case of collision or buffing of wagons with excessive velocity
Draw and buffer gears for locomotives and railcars
Air springs (pneumatic springs) for railway braking equipment
Brake cylinders for railways
Brake systems, including all accessories, for wagons
Buffer couplings
Buffers (bumpers)
Control boards for railway braking systems
Electronic outfits for pneumati railway braking equipment
Electropneumatic braking equipment for railways
Emergency brakes for railways
Indicating devices
Pneumatic braking equipment for locomotives, railcars and wagons
Pressure regulators (balancing valves) for railway braking equipment
Split bushes for railcars
Toilet systems for train passenger coaches
Traction gears
Waste (retention) tanks for passenger coach toilets
Rail groove cleaning machines
Switching devices for railways
Dust bin and container washing plants
Liquid gas stations
Pressure tanks for the storage of ammonia, water, air, readyâmixe plaster, liquid gas, etc., according to clients' specifications
Pressure vessels and tanks, respectively, according to clients specifications
Pressure vessels for gas (natural gas), air, vapour, water and oil
Collecting containers
Containers of various kinds
Steel containers
Collecting containers
Collecting tanks, with thermal insulation
Fuel tanks, suited for integration into motorcars
Glass fiber reinforced cylinders, diameter 1,000 up to 4,000 mm
Glass fiber reinforced double wall tanks for waterâcritical liquids
Glass fiber reinforced potable water vessels
Glass fiber reinforced silos fo solid matters
Glass fiber reinforced storage vessels for chemicals and foodstuf
Glass fiber reinforced waste water vessels
Hopper systems for powdery and granular goods
Oil tanks, suited for integration into motorcars
Pressureless tanks and vessels, respectively, for the storage of liquids, for the chemical and petrochemical industries, for breweries and dairies, beverage an food industries, the paper and pul industry, etc.
Pressureless vessels and tanks, respectively, for transporting bul goods
Pressureless vessels and tanks, respectively, for transporting liquids
Pressureless vessels and tanks, respectively, made of stainless steel
Sewage vessels
Specialâtype vessels and tanks, pressureless
Steel silos
Storage pallets
Tanks made of stainless steel
Troughs (tubs, containers), rectangular and round
Vessels and tanks according to clients' specifications
Vessels made of stainless steel
Water tanks, suited for integration into motorcars
Small containers, other
Small steel containers
Transport containers
Air filters
Cooling water pipes
Filters for engines
Sheet metal coverings for the vehicle industry
Factories and plants for wood processing industries, workshops, including training centres
Gas supply plants with reducing and measuring installations, such as natural gas reducing stations, liquid gas supply installations, gas mixing installations, NH3âplants
Gas, water and longâdistance, resp. area heat supply installations for towns, industries, hospitals, etc.
Longâdistance and district, resp. area heating plants, including all auxiliary facilities and supply pipelines
Shortâ and longâdistance heatin plants
Container handling systems
Loading and unloading plants fo massproduced and bulk materials
Refuse transfer stations
Tank storage plants for UFR (urea formaldehyde resin)
Tank storage plants for liquid chlorine dioxide
Tank storage
Airâraid shelters
Chemical dosing and supplying plants
Gas cleaning plants
Gas dehydrating plants
Gas treatment plants
Liquid gas mixing plants
Biomassâfueled power and heat coâgenerating plants
Central energy stations
Flue gas cleaning plants
NH3 plants
Postâcombustion plants, catalytic and thermic
Postâcombustion plants, catalytic
Bioâwaste composting plants in closed or open rotting boxes and&or halls
Composting plants for food industry refuse
Domestic waste storage plants
Mechanicâbiological waste treatment plants
Recyclable material sorting plants
Recycling, separating and processing plants for secondary raw materials
Refuse disposal systems (sorting, processing, decomposition, recycling, compact gasification)
Sewage sludge and refuse composting plants
Brake cylinders of various kind
Hose couplings for railway braking equipment
Pneumatic cylinders of various kinds
Canting work
Cutting and canting work
Deepdrawing parts of metallic materials
Formed parts of sheet metal Formed parts of plate metal
Job contract work of serial parts
Job contract works in the line of mechanical manufacturing
Laser cutting of sheet metal and pipes in job contract work
Laser cutting work
Machinery parts and accessories in time contract work
Machining work
Manufacturing of components for the car and traffic engineering
Mechanical precision components for automotive industry, engine industry and general machinery industry
Metal and powder coating
Metalworking work of all kinds
Painting
Parts of all kinds, made of thinâgauge metal
Punching work
Sheet metal elements Plate elements
Surface finishing (zincâphosphatizing, dip priming, powder coating)
Surface finishing work
Turning work
Vendor parts
Welding work of all kinds (also in time contract work)
Planning and engineering services
Planning, engineering and maintenance services for gasâ, heatâ, airâ and environmental installations
Project engineering and maintenance capacity, consultations, instructions, general contractor services
Assembly of plants
Assembly of steel constructions of all kinds
Assembly of structural steel elements
Assembly of ventilation ducts and pipelines made of plastic
Industrial assembling work
Maintenance, service and shutâdown of industrial production systems
Mounting of ventilation ducts and sewerage pipelines
Repair and conversion works
Repair of firing and combustion systems, respectively
Extraction and filter installations
Filter elements
Filters
Prefabricated metal parts
All sorts of sheet metal casings, iron boxes
Casing elements
Customâmade articles of stainless steel
Customâmade articles of thin sheet
Discharge pipes, branch pipes
Metal tubes
Sheet metal hardware
Sheet metal moulds
Sheet metal products, of nonâferrous metals
Sheet metal structures
Sheet metal tubes for hotâair heating
Sheet metal working
Sheet steel products
Smoke flues
Ventilation pipes
Condensers
Steam condensers
Air curtains for doorways
Air heating devices of various kinds
Air heating systems
Warm air heating devices
Smoke tube boilers up to 15 MW
Thermooil boilers
Hot water boilers
Warm water boilers
Steam boilers
Watertube boilers
Pipeline bridges
Stages
Halls for various purposes in container resp. conventional steel design with panel resp. caseâbay insulation
Towers and lattice masts according to statics resp. clients specifications
Pipe bends
Quarter bends
Aerating (ventilating) duct lines, made of sheet steel or plastics
Aerating (ventilating) ducts
Air conditioning ducts
Air pipings, resp. pipelines
Bridge drain pipes
Flexible pipings and pipelines
Flexible tubes
Glass fiber reinforced pipeline systems
Pipe construction
Pipe laying work from NW500 up to NW2000 made of steel or stainless steel, mainly for air exhaust resp. air supply systems
Pipe laying work
Piping and pipeline components
Pipings, pipelines and other components for air and heat distribution purposes
Pressure and highâpressure pipelines according to clients' specifications
Pressure pipelines for cooling water
Sheet metal pipings and pipelines
Ventilating duct lines, pipes, air ducts and shaped pieces
Welding fittings, nominal width 1&4" to 2"
Corrosion, acid and heatâresistant steel pipes
Annealed pipes for car manufacture
Tubes made of antiâcorrosive, acidâ and heat resistant metal
Tubes, welded
Coating
Powder coating
Embossing
Choppers for waste wood and log
Wood chipping machines