... four tees 2.sand mould making 3.carbon steel 4.tube 5.MT UT Efficiency: Annual output of more than 10 ... apply to vessel use.(2) Parts for steam turbine.(3) Straight Bollard, bend Bollard,bell mouth,chock etc, for mooring, port ... declared NK,DNV,BV,ABS,CCS,Germany classification society attestation. tube body