... ,Q235,Q345 Prime quality Galvanized Pipe 1)Outer Diamete: 1/2" to 10"2)Wall thickness:0.5mm-10mm3)Length: Max. 12 meters4 ... , JIS,DIN,BS,EN5)Steel Grade: Q195/Q215/Q235/Q345/10#/20#/ASTM A106 GRB6)Packaging: Plastic Cap, In bundle.7 ... toleranceW.TThickness Tolerance20--219MM±0.030.6--10MM±0.02Length 2--12M , according to customers' requirementsZinc coating 240--350g/m2International Standard ...