... , 316L, 321, S31803 Certification: BV, ABS, GL, PED, ISO9001 Kind :WN, SO, PL, SW, LJ, BL Slip On Flanges - ANSI B16 ... ,Transport ISO9001-2008. Stainless Steel Flanges SpecificationASTM A 240,AI82DimensionANSI B 16.5GradeTP304,304L,304H,316, 3I6L,316H,317,317L, 321 ... .Size1/4" to 48" Carbon Steel Flanges SpecificationASTM A 105DimensionANSI B 16.5Grade RangeSORF, BLRF, SWRF, WNRF, SCREWED.Class150,300, ...