... JIS 5K, 10K, 16K and 20K ANSI Flange Materials: Carbon steel, Stainless steel and Alloy steel etc. Market: America, Europe, Korea, South East ... to the new customer. Kum Kang fittings Co. Specializes in producing Slip-On, Weld Neck, Socket Weld, Threaded, ... final inspection, packing, delivery. After Sales Service: Shipment tracking in time.Any problem happening of our products, once confirmation will ...