... silent chains, special conveyor chains. Inquiry now for specifications! Non-standard chains, silent chains, special conveyor chains. Silent Chains: CL04 ... standards. We are specialized in producing all kinds of standard chains and non-standard chains:1. Motorcycle Chains: 25H(04CH), 415, ... Side bow chain for pushing window8. Forklift-chain9. O-ring and X-ring Motorcycle chains: 420, 428, 428H, 520, ...