Spiral specifications, accessible VAI (certified), Gansu spiral

Mastery of Tianjin Steel Trade Co., Ltd. specializes in the supply of various types of spiral pipe, pipe, seamless tube, reasonable price and stock. The gap is caused by the proximity effect is too small increases, excessive heat welding, burning resulting weld; welds or extruded to form a spiral pit after rolling, it affects the quality of the weld surface. After the two edges of the tube is heated to welding temperature at squeezing rollers squeeze coil specifications, form a common metal grains mutual penetration, crystal coiled tubing, forming a strong weld. Mastery of Tianjin Steel Trade Co., Ltd. specializes in the supply of various types of spiral pipe, pipe, seamless tube, reasonable price and stock. How to increase the stability of spiral steel pipe spiral steel products storage or warehouse space spiral 16mn, should choose clean, smooth drainage area, away from harmful gases or dust in factories and mines. The presence on the ground to remove weeds and all sorts of things, to keep the steel clean. Spiral specifications, accessible VAI (certified), Gansu spiral from the Tianjin Steel Trade Co., Ltd. Mastery. Mastery of Tianjin Steel Trade Co., Ltd. (www.tjtdgl.com) (www.tdglgt.com) Shandong Liaocheng, steel leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer demand. Mastery Steel Union leaders in the staff warmly welcome all inquiries negotiations to create accessible VAI better future.