Steel iron welded tube Erw Black Steel Pipe
Material: Carbon Steel
Q235 = S235 / A53 Grade B / A500 Grade A / STK400 / SS400 / ST42.2
Q345 = S355JR / A500 Grade B Grade C
Material: Carbon Steel
Q235 = S235 / A53 Grade B / A500 Grade A / STK400 / SS400 / ST42.2
Q345 = S355JR / A500 Grade B Grade C
Q195 Q235 ERW welded black steel pipe 1-8mm
3 inch ERW welded carbon Black round steel pipe