HOT SALE flange 1.standard:DIN 2.Certificate:ISO9001:2000 ,API. 3.pressure:class150~2500 ... steel . 2.Size:DN15-DN1000. 3.Standard: ANSI B16.5,ANSI B16.47 ,GB,DIN,JIS ,BS,EN. 4.working press ... /SW/LFMaterial:carbon steel:A105,Q235,ST37,P250GH,C22.8,S235JRstainless steel:321,201,F304,F304L,F316,F316L,316 ... /PL DN10~DN2500Standard:ASME B16.5/ B16.47 ,DIN 2630,/2632/2631/2633DIN 2634/2635/2636/2637/263JIS ...