Ring Type Joint Flange Size: 1/2" ~ 64"(DN15 mm ~ 1600 mm) Type: Slip-On, Welding Neck, Blind, Socket Welding, Threaded Ring Type Joint FlangeKum ... treatment,machining,drilling,marking,washing,final inspection,packing,delivery. Ring Type Joint FlangeSize: 1/2" ~ 64"(DN15 mm ~ 1600 mm ... )Type: Slip-On, Welding Neck, Blind, Socket Welding, Threaded, Lap Joint ...