Re: M que quiere decir? (M)
M= maximun material condition.
In the ANSI Y 14.5, maximun material condition is described as:
“The condition in which a feature of size contains the maximun amount of material within the stated limits of size, (for example) minimun hole diameter, maximun shaft diameter.”
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Dibujar es el acto de pensar y transmitir conocimientos al mismo tiempo........ 
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