Business scope;

1. Excavators of various types include bucket, big and small arms, long arm, bucket teeth, oil cylinder, connecting rod, rocker, pin shaft, bushing, horse head, I-frame, pin shaft, front fork, back seat and scarifier.

2. Chassis components: Roller, guide wheel, drag chain wheel, drive wheel, chain assembly, track shoe, track pin sleeve, bolts and shoes.

Belt assembly.

3 Maintenance of wearing parts: Filter element, special engine oil, hydraulic oil, gear oil, long-term anti-corrosion antifreeze, air inlet pipe, intercooler pipe, oil filler pipe, oil tank cover, hydraulic pump screen, throttle lever, belt, cab shock absorber, stickers.

4. Hydraulic components: Main pump, distribution valve, rotary motor, traveling motor assembly and accessories.

5. Electrical components: Computer board, instrument, console, compressor, air-conditioning panel, generator, wiring harness, condenser, air-conditioning controller, throttle motor, sensor, starting motor and relay.

6. Cab series accessories: Assembly, engine hood, monitor, computer board, wiring harness assembly, air conditioning panel, radio, switch, electrical components, air conditioner, seat, left and right operation consoles, handle assembly, PPC valve, door, door push-pull frame, skylight, front window, whole car lock, glass, seal series, interior trim, passport lock, fuel tank.

7. Engine parts and cooling system: Fuel tank radiator, water tank radiator, intercooler radiator, fuel injection pump, fuel injector, cylinder block, middle cylinder assembly, cylinder head, flywheel housing, coarse filter, fine filter, oil-water separator, fan blades, pulley, engine connecting rod, crankshaft, water pump, oil pump, large and small tiles, supercharger, cover plate of machine cooler, and four matching sets.

8. Four sets of engines: Big and small tiles, oil nozzle, oil outlet valve, repair kit and plunger.