Detailed Product Description 1) Size: 1/2"-72" 2) Varieties: SCH20, SGP, STD, SCH40, SCH80, SCH160 3) Standard: ANSI B16.9/16.28, ASTM, API 5L, DIN2605/2615/2616, JIS P2311/2312 ASME B36.10M---1996 4) Material: ASTM A234 WPB, carbon steel, 316, 316L, 304, 304L, 321, 2520 and 904L 5) Surface treatment: Black or white painted to prevent corrosion, smooth, bubble-free 7) Special design available
