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This new symbol was first introduced in the ASME Y14.41 standard and is now in effect in the ASME Y14.5-2009 standard. The standard still allows, as an option, the chain line to define an unequal ...
The new ASME Y14.5-2009 standard on dimensioning and tolerancing reflects a culmination of effort extending over 15 years. It is a revision of the ASME Y14.5M-1994 standard. The M in the title of ...