... material with different standards 4.Type:SO,PL,WN,RF,SW Product NameWN Stainless Steel FlangesStandardASTM,AISI,SUS,GB,DIN,ENMaterial304 ... , 600LB, 900LB,1500LB, etc.TypeWelded Neck, Blind,Threaded, Lap Joint, Socket Weld, SOH, SOP, FF, RFMOQ5pcsDelivery TimeFast according to the order ...