... , valves and other equipment to form a pipe work System. Suitable for standard – ASA/ANSI (USA), PN ... MSS, NF in various materialFlange for pipe work system is providing easy access for cleaning, inspection, or modification ... Canada, Germany, Spain,nertherland ,Russia, Italy ,U.A,E, Malaysia , Japan, South Korea and Taiwan,so ... or as customers request. Where can I buy the high quality flange?Ring Flange