... Features:1) Carbon steel fitting and stainless steel fitting2) Standard: ASME, ANSI, API, JIS, DIN3) Material: WPB234, 316L, 304L, 321, 321H4) Size: 1/2 ... " - 24"5) Production with anneal solution for stainless performanceOuter packing:Seaworthy plywood case pipe fitting carbon steel Pipe Cap