According to shape and longitudinal steel can be divided into

　　According to shape and longitudinal steel can be divided into: section Steel pipe and change such as section

　　Steel pipe. Variable cross-section (or variable cross-section) Steel pipe is to point to along the length direction of cross-section shape, internal and external diameter and wall thickness in cyclical or the periodical change of steel pipe. Its main have: the tapered tube, tapered tube in the ladder tube, and within the ladder, periodic section tube, corrugated pipe, spiral pipe, heat sink with the Steel pipe and with multiple track of barrels, etc.

　　We have adopted advanced production equipment and technologies to manufacture our socket flanges and plate flange, which can not only improve product quality, but also save raw materials. Our products have high strength, good toughness and resistance to corrosion.