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Drawing annotations explained?

Question asked by JR Bartle on May 5, 2015
Latest reply on May 5, 2015 by Tony Cantrell

I am no machinist so I have no clue what these mean exactly. I'm assuming they are denoting a surface finish but am not sure. I'd like to know the symbol meaning and letter designator at the end. The dimension is pretty obvious. I have circled (kinda) the annotations. The drawing is from a company in England if that make a difference.

 

 

 

 

 

 

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