PPGI, Corrugated Sheet, Stainless Steel Sheet manufacturer / supplier in China, offering API 5L ASTM A53 A106 Grade B Sch40 Sch80 Sch. Std 1/4" to 24" Carbon Seamless Steel Pipe, API 5L ASTM A53 Gr. a ERW Carbon Large Tube Steel Pipe Price A36 Carbon Steel Pipes Tubes Price, A106 Gr. B Seamless with Pipe Cap API 5L X42 Mild Pipe 101.6mm Diameter Carbon Steel Tube a 106 Carbon Steel Seamless Pipe and so on.