Structure with large diameter Rectangular Pipe (GB / T8162-1999) is used for general structural and mechanical structure of large diameter Rectangular Pipe. Square tube prices. Transmission fluid with large diameter Rectangular Pipe (GB / T8163-1999) is generally large diameter Rectangular Pipe for conveying water, oil, gas and other fluids. Galvanized square tube prices. Structure with large diameter Rectangular Pipe (GB / T8162-1999) is used for general structural and mechanical structure of large diameter Rectangular Pipe. Tianjin square tube. Transmission fluid with large diameter Rectangular Pipe (GB / T8163-1999) is generally large diameter Rectangular Pipe for conveying water, oil, gas and other fluids. By Application tube - decorative square tube, square tube with machine tools, industrial machinery square pipe, chemical pipe, square steel pipe, shipbuilding pipe, automobile pipe, steel beams with square tube Special Purpose square tube. Rectangular pipe wall thickness by Category - Ultra thick-walled Rectangular Pipe, thick-walled rectangular pipes and thin-walled Rectangular Pipe Rectangular Pipe Usage: machinery and equipment, solar energy equipment, steel, automotive parts, bridge pile, fence, internal structure of the ship. Square tube specifications, Mastery Steel Union (certification), Tianjin square tube 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.