spiral welded steel pipe,Spiral drill pipes,Galvanized Spiral Pipes

Steel grades:TP304, TP304L, TP321, TP316, TP316L, TP310S, TP301, TP317, TP317L, TP347H,
2205, TP904L etc.
Standards:GB/T 14975,GB/T 14976, GB 132

Company:Cangzhou Orient Import&Export CO.,LTD