Square tube -O.D:20mm*20mm-1000*1000mm -W.T:2mm-35mm -Length:6m-12m , or as per customerâ??s requirements -Steel grade:Q195, Q235, Q345(16Mn), STKR400/490, A500, ST37/44/52, S235, S275, S355, etc. We can also customize your order with any coating and threading you need.
