... . 4)material:cs,ss,alloy BG BW pipe fitting 180 Degree Bend sizeSeamless:from 1/2" to 24"Welded:from 24 ... , SCH80., SCH100, SCH120, SCH140, SCH160, XXSstandardASME B16.9, ASME B16.28, ASME B16.25, MSS SP-75 DIN2605 JISB2311 JISB2312 JISB2313 ...