1.welding bollard 2.carbon steel 3. lead bollard 4.weight 0.2---2.5tons This product metallurgical equipment for the industry, can ... , bend Bollard,bell mouth,chock etc, for mooring, port working equipment .(4) Pump body, valve body etc. for petrochemical industry working ... declared NK,DNV,BV,ABS,CCS,Germany classification society attestation. welding Bollard