MS Steel Hollow Section in stock Product Description 150x100 rectangular steel pipe Square tube:20x20--400x400mm Rectangular tube:20x40--300x500mm Thickness: 0.5mm - 20.0mm Usage: Steel struction,Mechanical,manufacturing,Construction,Automobile manufacturing,Shipbuilding,Electricity and so on Black steel hollow sections Black annealed steel hollow section Pre Galvanized steel hollow section Hot...