Bronze & bi metal bushing and carbon shaft, collars and seal floating are efficient designed to maximize durability, wear resistance, cost efficiency. Our products are fully calculated by all the factors affecting travel life of products and supporting upper rollers provide maximum rigidity. 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.