1.Stainless Steel Cap 2.Size: 1/2"-72" 3.Wall Thickness: SCH20,STD,SCH40,SCH80,SCH160,XXS 4.Standard: ANSI,ASME,ASTM,JIS,DIN ... Stainless Steel Pipe Fittings1. Standard: ANSI ... ,304LN,304TI,304H,321,321H,316,316L,317,317L 1/2"-72" ANSI/ASME/ASTM/JIS/DIN Stainless Steel Cap