... -8.5mm Length: 1-12m welded steel pipeOD:21.3-219mm, Thickness: 0.8---12mm Standard: API 5L (A, B, X level ... Features: 1) Product name: welded steel pipe 2) Place of Origin: Tianjin, China 3) Material: API 5L line pipe: Gr.A, Gr.B, X ... ,X-46,X-52,X-56,X-60 API 5CT tubing and casing pipe: H40, J55 4) Diameter range: 73mm-426mm 5 ...