BRITISH STANDARDBS EN 1092-1:2002Incorporating Corrigendum No. 1Flanges and their joints — Circular Flanges for pip...
A N A M E R I C A N N A T I O N A L S TA N D A R DDuctile Iron Pipe Flanges and Flanged FittingsClas...
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ANSI/MSS SP-44-2019 Standard Practice Developed and Approved by the Manufacturers Standardization Society of the Val...
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