| The tube billets for the steel tubes manufactured by our company is the high quality tube billets supplied by Xingcheng Special Steel Mill and BaoSteel Corp. In the process of the production, the operation is conducted rigidly as ISO 9001:2000 Quality System with domestically advanced production management and quality control. For the manufacturing technique in terms of heat treatment, unique and fully mature advanced heat treatment technology is adopted£® |
Steel tubes
