... Type: Slip-On, Welding Neck, Blind, Socket Welding, Threaded Ring Type Joint FlangeKum Kang fittings Co. specializes in producing Slip ... rings below Φ2000.We have the whole quality control system which covers every process of the manufacturing-Raw material inspection ... ,heat treatment,machining,drilling,marking,washing,final inspection,packing,delivery. Ring Type Joint FlangeSize: 1/2" ~ 64"(DN15 mm ~ ...