... .Certificate:ISO9001:2000 ,API. 3.pressure:class150~2500, 4.Type:WN,SO PL,BL,SW, we specialize in this field for ... .working press: CLASS 150~2500,PN2.5~400 Production: flangeType:WN/SO/PL/BL/TH/SW/LFMaterial:carbon steel:A105,Q235 ... ,S235JRstainless steel:321,201,F304,F304L,F316,F316L,316.Size:WN DN15~DN4000SO DN10~DN1000BL/PL DN10~DN2500Standard:ASME B16.5 ...