... S32750,F55/UNS S32760 Types:Welding Neck Flange,Slip on Flange,Threaded Flange,Socket Welding Flange,Blind Flange,Orifice Flange, ... Ring Joint Flanges,Long Welding Neck Flange,Figure 8 Blanks Standard:ASME/ANSI B16 ... engineering, metallurgy, light industry, power station, city building, water supply system, oil transportation, gas feeding, natural gas and long distance ...