Galvanized square pipe after treatment on a large variety of products of high functional gap with foreign countries. Galvanized Rectangular Pipe serious lack of capacity, can not meet the market demand, Tianjin square tube, square tube of galvanized always stood high proportion of galvanized Rectangular Pipe's total imports. Galvanized square pipe after treatment on a large variety of products of high functional gap with foreign countries. Galvanized Rectangular Pipe serious lack of capacity, can not meet market demand, the pipe price, our country has been galvanized square tube station galvanized Rectangular Pipe high proportion of total imports. Hydraulic and pneumatic cylinder with precision internal diameter of large diameter Rectangular Pipe (GB8713-88) is the manufacture of hydraulic and pneumatic cylinder with drawn or cold rolled precision diameter size with precision large diameter square and rectangular tube. Cold drawn or cold rolled precision large diameter Rectangular Pipe (GB3639-2000) is used for mechanical structure with high dimensional accuracy, hydraulic equipment and good surface finish of cold-drawn or cold rolled precision large diameter square and rectangular tube. Use precision large diameter Rectangular Pipe manufacturing mechanical structure or hydraulic equipment, square tube manufacturers, can greatly reduce machining time, improve material utilization, and help to improve product quality. Table-side management on weight _ 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.