Elbows,316L Stainless Steel ,LR,90DEG,18",SCH 40 13.7-1219.2mm Standard:ANSI, ... SP-75, BS1387Raw materialCarbon steel , stainless steel, alloy steelCarbon Steel 10# 20# Q235B ASTM A234 ASTM A105 ASTM A403Stainless Steel 1Cr18Ni9Ti ... in-house or Third Party inpectionSamples: Elbows, 316L Stainless Steel ,LR,90 DEG,18",SCH 40