... / square pipe/ welded square tubeMaterial: ASTM/GB/JIS/BS Hot Rolled Square PipesSteel gradeQ195, Q215, Q235, Q345,ST37,ST52Outside ... slings wrapped with water proof plastic cloth. We also pack our products according to customer’s requirement.Applicationconstruction structure, ... Our company also have a high reputation in the market.Hot Rolled Square PipesSteel gradeQ195, Q215, Q235, Q345,ST37, ...