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. Square tube prices. Use precision large diameter Rectangular Pipe manufacturing mechanical structure or hydraulic equipment, can greatly reduce machining time, improve material utilization, and help to improve product quality. Mastery Trade Co., Ltd. of Tianjin Port partners: Baosteel, Anshan Partners Partners Partners Shougang, Jinan Iron and Steel, Wuhan partner cooperation partner. Jiangxi square tube. Taiyuan Iron and Steel square tube specifications cooperation partners _ _ Mastery of Jiangxi square tube from 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!