... 3.standard: ISO/DIN/ANSI 4. material:40 manganese steel brown DID 25H bush roller chain Item Name25H chainP Pitch / ... , inner tubes, pump, brake shoes, shock absorbers, brake lines, chain sets, cushion and so on. Sprockets, chains , inner tubes, boost ... company can design, develop, produce and trade including motorcycle chain wheel, driving chain, shock absorber, brake shoe, lights, pump and all ...