1.Products: Line Pipe 2. Standards: API 5L PSL1&PSL2 3. Steel Grade: Grade B, X42, X46, X52, ... Seamless steel line pipeIntroduction:1.Products: Line Pipe 2. Standards: API 5L PSL1&PSL23. Steel Grade: Grade B, X42, X46, X52, X60 ... , and gas, water, oil in natural gas industry. 13. Terms of Payment: T/T in advance or irrevocable L/C at ...