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API 6A Adapter Flange&Blind Flange&Companion Flange&weld neck flange
Flange are mainly used for connect the wellhead equipment . Christmas tree and other well control equipment .A wide variety of types including flange spool thread flange and Blank Flange etc.
5-1203 Dahua Digital Industrial Park Tiangu 6th Road,Hi-tech development Zone Xi'an, China 
86-13609153141 
