Problems of three kinds of composite plates

In the actual production process, most of the manufacturers are: the basic and transition layer after welding 100%RT, and then stress relief heat treatment, welding layer after only 100%PT. If the two times after the whole layer of RT welding, it is likely that the film can not get through, but the quality of the welding to be reliable

Ji'nan Yonggang Materials Co. Ltd. is located in the central city of Ji'nan Baima Mountain Road No. eight in the 334 warehouse inventory, in more than 20 thousand tons, annual sales of 200 thousand tons.
The company is an agent of shandong. Under the Ministry of the Department of plates, profiles, pipe;
At present the company's main Jinan Iron and steel, Laiwu Steel carbon, low alloy, high strength, wear-resistant, container board, in the broadband hot-rolled coil, GB angle groove steel, steel spot, futures and booking service.
Contact: Li Yun
Tel: 0531-58851916 58851858
Cell phone (micro signal): 15269187988
Fax: 0531-58851555
QQ number: 214486209
Company website: www.jnygsteel.cn