1) Types: seamless pipes, rectangular pipes, welded pipes, mirror-surface pipes, and special pipes 2) Process method: cold draw 3) OD: 6 to 630mm 4) WT: 1 to 40mm 5) Grades: 321, 304, 304L, 316, 316L, 310S, etc. 6)length:1000mm-17000mm 7) Sta ...