1.Stainless Steel Cap 2.Size: 1/2"-72" 3.Wall Thickness: SCH20,STD, ... ,SCH80,SCH160,XXS 4.Standard: ANSI,ASME,ASTM,JIS,DIN Stainless Steel Pipe Fittings1. Standard: ANSI B16.9 / 16.28, ASTM A53 ... ,317,317L 1/2"-72" ANSI/ASME/ASTM/JIS/DIN Stainless Steel Cap