... -On, Welding Neck, Blind, Socket Welding, Threaded Ring Type Joint FlangeKum Kang fittings Co. specializes in producing Slip-On,Weld ... ,machining,drilling,marking,washing,final inspection,packing,delivery. Ring Type Joint FlangeSize: 1/2" ~ 64"(DN15 mm ~ 1600 mm)Type ... etc. Market: America, Europe, Korea, South East Asia and Middle East countries.Surface treatment:Anti-rust Oil,Transparent/Yellow/Black ...