... DIN, UNI, BS, AS 3) Pressure Vessel Forging, Shaft Forging Slip On Flanges - ANSI B16.5 Stainless Steel 304L,316L ect. Standard ... BLRF, SWRF, WNRF,SCREWED.Class150,300,600, 900, 1200, 1500,2500.Size1/4" to 48" Carbon Steel Flanges SpecificationASTM A 105DimensionANSI ... BLRF, SWRF, WNRF, SCREWED.Class150,300,600,900,1200, 1500,2500.Size1/4" to 48" Alloy Steel Flanges SpecificationASTM A 350DimensionANSIB ...