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Flange standards
Time2012-3-12 17:03:29

International tube flange standards have two main system: European flange system which take German DIN (including the former Soviet union) as a represent, America flange system which take The United States ANSI flange as a represent. In addition, still have a kind of Japan JIS pipe flanges, but in the petroleum chemical devices which general only for utilities, and have little influence in international.