... winding drum, helm seat etc. for deck machining use apply to vessel use.(2) Parts for steam turbine.(3) ... etc, for mooring, port working equipment .(4) Pump body, valve body etc. for petrochemical industry working.(5) Gear, Bull Gear ... the self –support export authority, 95% of product apply to export. The max weight of one piece product ... ,ABS,CCS,Germany classification society attestation. tube body