... forged flangesstandard pressure rate ANSIANSI B16.5class150,300,600,900,1500,25001/2"-24"slip-on flange(SO)welding neck flange ... 1PN6,PN10,PN16,PN25,PN40,PN63PN10010"-2000"Non-standard forged flange is manufactured as per the drawings!Now I’d ... productsforged flangeslip-on flange,welding neck flange,socket welding flange,threaded flanged,lap joint flange,blind flange,ring joint flange,long welding neck ...