Jining Santesongzheng Construction Machinery Co.Ltd. was established in 2000, is the OEM parts supplier of Komatsu (KOMATSU), Shantui (SHANTUI) and Carter (CAT), the company's headquarters is located in Jining, he main parts are as follows.1) Chassis parts: supporting wheel, pallets, guide wheel, tensioning cylinder, chain, track plate, sprockets2) Structural parts: bucket, loosener, big and small arms, extension arms, big and small arms/bucket cylinders, work frame, connecting rod, puller head, big arm fork, bushings, pins3) Electrical parts: main harness, monitor, computer board, pump controller, air conditioner panel, radio, cab harness, air conditioner, mainframe, heater4) Cab accessories: cab shell glass seat upholstery panel floor mat operator's console cab door assembly5) hydraulic parts: main valve, hydraulic pump, travel motor, rotary motor, gearbox, rotary bearing, rotary center joint6) Engine parts: four sets, piston + piston ring + piston pin + cylinder liner, crankshaft, crankshaft tile & connecting rod tile (large and small tile), thrust tile, connecting rod, camshaft, repair kit, throttle motor, flame failure switch, generator, starter motor, flywheel housing, fan pulley, fan blade, fan bracket, oil injection pump, oil injector, water pump, oil pump, excavator middle cylinder assembly, cylinder body, cylinder head, cylinder gasket, valve chamber Gasket, valve seat ring, intake valve, exhaust valve, turbocharger