... pipe work System. Suitable for standard – ASA/ANSI (USA), PN/DIN(EUROPEAN), BS10( BRITISH/AUSTRALIAN) , ... ( JAPAN/KOREA), API, AWWA,, MSS, NF in various materialFlange for pipe work system is providing easy ... joint”, “ socket weld”, “threaded” and also “blind”.We export to America, Canada, Germany, Spain,nertherland ,Russia, ... or as customers request. Where can I buy the high quality flange?Ring Flange