... -2000Kg Class certification NK,GL, DNV,BV,ABS etc. ship parts Bollard Material:JIS.DIN.GB.ASTM.Carbn steelSinglet:34Kg-2000Kgsand castingEfficiency ... to vessel use.(2) Parts for steam turbine.(3) Straight Bollard, bend Bollard,bell mouth,chock etc, for mooring, port working equipment ... declared NK,DNV,BV,ABS,CCS,Germany classification society attestation. Bollard