... Customers.1) Chain wheel, gear wheel, sheave, idler wheel, platen, winding drum, helm seat etc. for deck machining use apply to vessel use.(2) Parts ... , block, module etc.(6) Fire grate car, carrier wheel, driving chain, chain wheel etc. for mine metallurgical engineering .(7) Support of bridge ... NK,DNV,BV,ABS,CCS,Germany classification society attestation. chain wheel