erw galvanized steel pipe
1).Specification:1/2" to 10"
2).Grade: 16Mn, A53-A369, Q195-Q345
3).O.D.:1/2''-10''(21.3mm-273)
4).W.T.:0.75mm-8mm
5).Length:3m-10m
6)Zinc:40,50,60,80micron