Jining Minerer Construction machinery co., LTD. The main bulldozers, four-wheel area crawler assembly, caterpillar track assembly, Angle of knife blades, roller, chain wheel, guide wheel, caterpillar, crawler board (wetlands. Dry), driven gear ring, knife Angle of the blade, tooth, tooth, device, hydraulic torque converter, scarifier (single tooth scarifier, tooth scarifier). Driver's fitting, dashboard, coupling, universal joint assembly, radiator, various shaft, idler shaft and pinion, big gear, trunnion, hydraulic oil tube, a cut cylinder piston rod, lift cylinder piston rod, piston rod, gear hub, wheel hub, torque converter filter, planet carrier, friction plate, flange, cylinder repair kits, ascension when tight cylinder repair kits, ripper cylinder repair kits, variable cylinder repair kits, torque converter kits, full set of o-rings, hose pipe, light switch, fan belt, wiper, rain hat, door lock, and fitting driver's seat, etc.