SELECTED FILTER SAND AND GRAVEL

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Our Selected Filter Sand and Gravel are natural alluvial origin, washed, dried, sieved, pure at 83% min. of SiO2.

 

A quality control service grant homogeneous product in each lot of production and with our technological expertise and actual production facilities we are able to respond to the needs of each of our customer with great precision.

 

The product fulfils the standard UNI ISO EN 12904:2005

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