Ugra Abrasion TesterUgra Abrasion Tester The device is basically a construction of the following four elements: a guiding slide frame equipped with screw fitted counter an abrasion sled gliding on the frame a metal block (weight 520 g) supported freely by the guiding frame, the lower side covered by a foam rubber coating a smooth Plexiglas board (size approx. 14 x 26 cm) serving as abrasion base The metal block has a surface area of 50 x 50 mm which causes an abrasive
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