... Commodity:GB,JIS,EN and DIN standard hot Galvanized steel pipes Material:Q195/Q235/Q345/10#/20#/ASTM A106 ... GRB Description:galvanized steel pipehigh-frequency welded1)outer diameter:1/2" to 46"2)wall thickness:0.6mm-16mm3) ... length:max 12 meters4)standard:GB,ANSI,ASME,ASTM,JIS,DIN,BS,EN5)steel grade ... strictly. GB,JIS,EN and DIN standard hot Galvanized steel pipes