Standard External coating Refer to:NF A49-710、DIN30670、CAN CSA21、CAN CSA 20、SY/T0413、SY/T0315 and other country’s external anti-corrosion standards; Internal coating Refer to:NF A49-709、API RP 5L2、SY/T0457 and other other country’s external anti-corrosion standards;
1)Out diameter:1/2”-32” 2)Wall thickness:2.77mm—33mm 3)Length Range:5.8m-12m 4)Standard:GB,ANSI,ASMRE,ASTM,JIS,DIN,BS,EN 5)Steel grade:Q195/Q215/Q235/Q345/10#/20#/ASTM A106 GR.B 6)Packaging:Plastic Cap,In bundle 7)Zinc content:170g—550g/㎡