... wheel, gear wheel, sheave, idler wheel, platen, winding drum, helm seat etc. for deck machining use apply to vessel use.(2 ... etc. for petrochemical industry working.(5) Gear, Bull Gear, axial seat, big shaft, block, module etc.(6) Fire grate car, carrier ... ,DNV,BV,ABS,CCS,Germany classification society attestation. Steel discreteness part