1)Size: 2"-24"
2)Pressure rating: 150#--300#--600#--900#--1500#
3)Material: WCB/WCC/WC6/WC9/LCB/LCC/CF8/SS304/CF8M/SS316 etc.
4)Standards:API6d
  A)Design and manufacture: BS 1868/API6D
  B)Inspection and Test: API598
  C)Bw connection: ANSI B16.5
  D)Face to Face: ASME B16.10