flanges(flange gasket,stainless steel flanges) 1.Materia:304,316,347,321,301,625,800 2.Standard: ASME, ANSI, API, JIS, ... JPI,MS Flanges(flange gasket,stainless steel flanges) ... 316L,321,A105 Certificate: >ISO9001:2000 Threaded flange is similar to slip-on flange, except they a bore and a counter ... send us an inquiry. Slip-On Welding Flanges 625