... 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 ... declared NK,DNV,BV,ABS,CCS,Germany classification society attestation. Rudder Bearer