... ,SAE,DIN or special requirements from Customers.1) Chain wheel, gear wheel, sheave, idler wheel, platen, winding drum, helm seat ... ) Pump body, valve body etc. for petrochemical industry working.(5) Gear, Bull Gear, axial seat, big shaft, block, module etc.(6) Fire ... grate car, carrier wheel, driving chain, chain wheel etc. for mine metallurgical ...