... /AUSTRALIAN) , AND JIK/KS ( JAPAN/KOREA), API, AWWA,, MSS, NF in various materialFlange for pipe work system is providing easy access ... -on”, “boss””lap joint”, “ socket weld”, “threaded” and also “blind”.We export to America, Canada, Germany, Spain,nertherland ,Russia, Italy ,U ... with polyethylene film or steel cases or as customers request. Where can I buy the high quality flange?Ring Flange