stainless steel pipe flanges 1.High quality with CNC lathe machine 2.Size: 1/2" to 60" 150lbs~3000lbs 3.Material:SS304,F316 stainless steel pipe ... various kinds of flange covering such as GB standard, ASME, ANSI, API, UNI, JIS, DIN, BS standard.Manufacture standard: ... GB/T9112-9124, HJ20592-20635, SH3406, ANSIB16.5 ,JISB2220.Material: 201, 202, 304, 304L, 316, 316L, ...