... SAE,DIN or special requirements from Customers.1) Chain wheel, gear wheel, sheave, idler wheel, platen, winding drum, helm seat ... body, valve body etc. for petrochemical industry working.(5) Gear, Bull Gear, axial seat, big shaft, block, module etc.(6) Fire ... carrier wheel, driving chain, chain wheel etc. for mine metallurgical engineering .(7) Support of bridge applies to bridgework .The product sells ...