Hebei square rectangular tube manufacturers there are many, many friends at the time of the purchase of square rectangular tube, I do not know what type you need, today xiaobian will explain to you about the classification of rectangular tube：
(A)by square rectangular tube cross-sectional shape classification：
Square rectangular tube cross-sectional shape classification can be divided into two types, namely (1)simple cross-section Square Tube: Square Square tube, rectangular square tube; (2)complex cross-section square tube: flower-shaped square tube, open-shaped square tube, corrugated square tube, shaped square tube；
(B)by Square tube wall thickness classification
Square rectangular tube according to the wall thickness classification can be divided into super thick wall square rectangular tube, thick wall square rectangular tube and thin wall square rectangular tube；
(Three)by Square tube production process classification
Square tube manufacturers, according to the production process can be divided into square tube, hot-rolled seamless square tube, cold drawn seamless square tube, extruded seamless square tube, welded square tube.Which is divided into welded pipe: (1)according to the process points-arc welding square tube, resistance welding square tube, gas welding square tube, furnace welding square tube; (2)according to the weld points-straight seam welded square tube, spiral welded square tube；
(D)by Square tube classification
Square rectangular tube can be divided into: decorative square tube, Machine Tool Equipment square tube, Machinery Industry square tube, chemical industry Square tube, steel structure square tube, shipbuilding square tube, automobile square tube, steel beam column square tube, special purpose square tube；
(E) by Square tube production standard classification
Square tube according to the production standard is divided into: GB square tube, Japanese standard square tube, British Square tube, American standard square tube, European standard square tube, non-standard square tube；
Square tube according to the surface treatment is divided into: hot galvanized square tube, galvanized square tube, oil-coated square tube, pickling square tube；
