1.Size:1/2"-90" 2.Material:carbon steel,stainless steel,alloy steel 3.Standard:AMSE,ANSI,DIN,JIS,eg 4.Certificate:ISO,API pipe fittings Type: Elbow,Bend,Tee/Cross,Reducer,CapMaterial: carbon steel: ASTM/ASME A234 WPB/WPC; A420 WPL6; ASTM A860 WPHY42/52/60/65/70,eg stainless steel: ASTM A403 WP304,304L,316,316L,321,ect alloy steel: ASTM A234 WP12,WP11,WP22,WP5,WP9,WP91, ect Standard: ASME B16.9, ...