... API. 3.pressure:class150~2500, 4.Type:WN,SO PL,BL,SW, we specialize in this field for 22 years ... steel . 2.Size:DN15-DN1000. 3.Standard: ANSI B16.5,ANSI B16.47 ,GB,DIN,JIS ,BS,EN. 4. ... working press: CLASS 150~2500,PN2.5~400 Production: flangeType:WN/SO/PL/BL/TH/SW/LFMaterial:carbon steel:A105 ... F316L,316.Size:WN DN15~DN4000SO DN10~DN1000BL/PL DN10~DN2500Standard:ASME B16.5/ B16.47 ,DIN 2630,/2632/2631/ ...