... :6m or acc to requirement 4)zinc coating:300g/m2 ASTM-A53 galvanized steel pipe1)WT:0.8-72)OD:19 ... are made under the ISO9001:2008 strictly3 payment term : L/C ,T/T ,money gram .4 Trade term :CIF ,CFR ,FOB ... pipe/GI pipe Thickness0.6-16 mmOuter diameter19-457mmLengthMax 16metersStandardBS, ASTM , ASME , EN , DIN ,GB, JISMaterialQ195 , Q215 ,Q235 , Q345ApplicationPetroleum, power,gas ...