... -On, Welding Neck, Blind, Socket Welding, Threaded Ring Type Joint FlangeKum Kang fittings Co. specializes in producing Slip-On ... factory has possessed 5-ton Splint Hammer,2-meter ring rolling machine,1-ton Air Hammer,Heat-treatment equipment,sheet-metal processing ... treatment,machining,drilling,marking,washing,final inspection,packing,delivery. Ring Type Joint FlangeSize: 1/2" ~ 64"(DN15 mm ~ 1600 mm ...