... ), Blrf (Blff), Swrf (Swff), Plrf (Plff), Ljrf (Ljff), Lwnrf (Ff), Thrf (Ff) StandardANSI, ASME ,MSS, API, DIN, JIS, BS. AWWA and GBClassANSI ... 150LBS-2500LBS,DIN PN6-PN160BS PN0.25-PN25 PN2.0-PN42 ... , black print, oil or zinc.Flange Facing TypesRF(raised face);FF(flat face);RTJ(ring type joint);RJ(ring joint face ...