... B16.5class150,300,600,900,1500,25001/2"-24"slip-on flange(SO)welding neck flange(WN)socket welding ... B16.5class150,300,400,600,900,1500,25001/2"-24" MSSASME B16.47SER,Aclass150,300,400,600,900 ... ,F22,F51,F11,F317L,F60…)Main productsforged flangeslip-on flange,welding neck flange,socket welding flange,threaded ... to our products’ quality and stage inspection.Based on that, we have a great success in the ...