... then jointed with bolts. FORGED FLANGEA flange is a method of connecting pipe, valves and other equipment to form ... a pipe work System. Suitable for standard – ASA/ANSI (USA ... KOREA), API, AWWA,, MSS, NF in various materialFlange for pipe work system is providing easy access for cleaning, inspection, ... as customers request. Where can I buy the high quality flange?Ring Flange