Every parts of Track roller in our factory is made of specialized steel to provide maximum durability and optimum performance of the machine. the heat treatment processes provided the consistent surface hardness; roller shells are made by press forged materials. and the floating seals are made by our reliable and well reputed supplier by rigid quality control, thereby eliminating leakage and maximizing long life. Bulldozer Series1.Carrier roller,track roller,idler,cutting edge,end bits and buckets,covers, final driver parts, ripper parts, push rods, and blades of Shantui bulldozers: TY320, TY220, TY160, and TY130.2. Huanghe, Pengpu, Yishan, Xuanhua bulldozer parts.Excavator Series1.Various parts, such as pins, bushings, cylinder piston rods,carrier roller,idler,sprockets , recoil spring,buckets and accessoriers, hoses and tubes for Komatsu series of excavator: PC60, PC130, PC200/220, OC300, PC360, PC4002. Hitachi, Cat, Doosan, Hyundai, Volvo, Sumitomo, Kato, and other series of excavator parts.Engine Cummins engine,Our company represents Shantui track with reasonable prices and quality guarantee.We also provide small, medium, and big repair for bulldozers and technical consultation.