1)Standard and non-standard chains 2)High Quality,Competitive Price 3)Best Service,Short Delivery Our ... are specialized in producing all kinds of standard chains and non-standard chains:1. Motorcycle Chains: 25H(04CH), 415, 415H, 420, 420H ... 630, 630H;10. Engine Mechanism chains (Timing Chains)11. Self-tooth-forming chains: PIV infinitely variable speed chains; Roller type infinitely variable speed ...