Roller Chain, Sprockets, Bearings manufacturer / supplier in China, offering Industrial Hardware Accessories Tsubaki Duplex Chain with Link 24A-2 Short Pitch Precision Roller Chains, Mecair 2′′ dB116/C Diaphragm Repair Kit for Jet Valve Quality Valve Parts, Mecair Type Diaphragm Repair Kit: B116 Replacement Repair Kit and so on.