... of various of steel pipe made in China including Steel pipes, square steel pipes,rectangular steel pipes, galvanized steel, galvanized square, rectangular tubes, spiral steel pipe.Weexport our ... .by customer's requiremntsStandardBS,GB ,DIN,ASTM,JIS,Steel GradeQ195/Q215/Q235/Q345/Zinc content40-260gPer m2Tolerence of ... South America,Eastern Europe,Southeast Asia,Africa Galvanized steel pipes(ASTM A53)