Mastery of Tianjin Steel Trade Co., Ltd. is in production, sales, logistics in one large square tube manufacturers. Square tube and rectangular tube produced by our company with a full-size specifications: 600 * 20 * 20 --- 600 square tube, 20 * 30 --- 400 * 800 square and rectangular tube of large diameter pipe, thick 1.5mm- --32mm square tube manufacturers, specifications of more than 2800 kinds; material for the Q195, Q215, Q235, Q275, Q345,20 #, 45 #, square tube, galvanized pipe, seamless pipe, large diameter thick-walled square tube , square and rectangular tubes thick-walled square tube, and can produce diamond, triangular, pentagonal, hexagonal, fan and other special size, are also available according to customer drawings, dimensions tailored. The production line for the leading international and domestic initiative of the wave roll extrusion unit, which rejected the original small workshop mode of production speed slow cold drawn square and rectangular tube, no guarantee of quality, twist, bend crack, uneven thickness and is now widely volume applications of cold-formed unit, low accuracy, specifications single, small caliber, thin (15.75mm) and other defects. The unit is forming a straight one unit square tube, the entire computer monitor, without manual pull hard pull, fully automated unit can guarantee square tube rectangular tube of a variety of mechanical and physical properties. Each production line output exceeds 20 tons per hour, the total output of the entire year after up to 15 tons. Fertilizer equipment with high-pressure large diameter Rectangular Pipe (GB6479-2000) is applicable to operating temperature -40 ~ 400 ℃, working pressure of high-quality carbon structural steel and alloy steel large diameter Rectangular 10 ~ 30Ma of chemical equipment and piping tube. Petroleum cracking large diameter Rectangular Pipe (GB9948-88) is applied to the oil refinery furnace tubes, heat exchangers and pipes of large diameter square and rectangular tube. Large diameter square tube square tube _ _ Inner Mongolia Tongda provided by the Tianjin Steel Union Steel Union Co., Ltd. Mastery. Mastery of Tianjin Steel Trade Co., Ltd. (www.tjtdgl.com) (www.tdglgt.com) strong, credible, Liaocheng in Shandong steel industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving access innovative ideas will lead VAI into the brilliant and you work for a better future!