Compared to steel pipe and round steel, solid steel, the bending torsional strength phase at the same time, the weight is lighter, is a kind of economic cross section steel, widely used in the manufacture of structural and mechanical parts, such as petroleum drill pipe, auto transmission shaft, bicycle frame and construction of steel scaffolding is used with steel pipe manufacturing circular parts, such as can improve material utilization, simplifying the manufacturing process, material saving and processing hours, such as rolling bearing ring, jack sets, has been widely made from steel pipe. Steel pipe or all kinds of conventional weapons indispensable materials, gun, gun barrel to steel pipe manufacturing. Steel pipe according to the cross-sectional area of the shape of the different can be divided into circular pipe and special shape. Due to the equal conditions, the circumference circle area is the largest, with circular tube can deliver more fluid.

Surface treatment :Black painting for anti-corrosion:



Galvanized for anti-corrosion: