Standard: ANSI, JIS, DIN, EN, ISO, GB, SH AND HG Size: 1/8" to 72" Thickness:SCH 10 TO SCH 160, XXS Connection:Butt WELDING 1.Material: ASTM A234 WPB, WPC, A105; A420 WPL6, WPL9, WPL3, WPL8; WPHY42, 46, 52, 56, 60, 65, 702.Usage: Petroleum, chemical, power, gas, metallurgy, shipbuilding, construction, etc. 3. Certification: API, ISO4.The price: the latest and competitive price Steel Caps