Charcoal Black Surface Plates

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Charcoal Black granite has a high quartz content, which provides a greater resistance to wear and damage. Our charcoal black
has low water absorption rates, thus minimizing the possibility of your precision gages rusting while setting on the plates. This
black granite creates little glare resulting in less eye strain for individuals using the plates. We have chosen our granite types
while considering thermal expansion in an effort to keep this aspect minimal.


Productivity Quality, Inc. has been the leading distributor of metrology systems in the Upper Midwest for over 30 years.

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