ERW 48.3mm scaffolding steel pipe 1.Standard:ASTM A53,GB/T3091,BS1387 2.Grade:Q195,Q215,Q235,Q345 3.OD:48.3mm 4.WT:1.5-3.5mm ERW 48.3mm scaffolding steel pipe1.Standard:ASTM A53,GB/T3091,BS13872.Grade:Q195,Q215,Q235,Q3453.OD:48.3mm4.WT:1.5-3.5mm 5.Length: according to customers' requirement. ERW 48.3mm scaffolding steel pipe