... ,SAE,DIN or special requirements from Customers.1) Chain wheel, gear wheel, sheave, idler wheel, platen, winding drum, helm seat etc. for deck machining ... mooring, port working equipment .(4) Pump body, valve body etc. for petrochemical industry working.(5) Gear, Bull Gear, axial seat, big shaft, block ... declared NK,DNV,BV,ABS,CCS,Germany classification society attestation. Gear wheel