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Accelerated polishing machine (PSV)

Granulats - Accelerated polishing machine (PSV): Accelerated polishing machine (PSV)

The Polished Stone Value (PSV) of a material used as road surfacing is a measure of how rapidly it becomes polished under the action of vehicle tires. This machine is used to produce accelerate polishing, conforming to Standards, of stone chippings set onto the periphery of a special revolving wheel. ...
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