... 5L (A, B, X level of series); Making Zero Defect The ERW steel pipe is widely used in water, oil, gas ... Network.Detailed Product Description Features: 1) Product name: welded steel pipe 2) Place of Origin: Tianjin, China 3) Material: ... API 5L line pipe: Gr.A, Gr.B, X-42,X-46,X- ... 52,X-56,X-60 API 5CT tubing and casing pipe: H40, J55 4) Diameter range: 73mm-426mm 5) ...