According to customers’ different requirements, we design and produce respectively by the Chinese GB, GB/T, HGJ, SHJ, JB, American API, 5L, API5CT, ANSI, ASTM, MSS, Japanese JIS, Germany DIN standard and ISO international standard. The products are widely used in petroleum, chemical, gas, nuclear power, thermal power enterprises, metallurgical enterprises, heating pipeline, shipbuilding, paper making, construction and other industries’ pipeline engineering. Based on the domestic market, our products are exported to Europe and Southeast Asia, Africa and other areas.