Abrasion tester „BÖHME“, according to the standards: ČSN EN 13 38-13 42, 1342, ČSN EN 13 748-1, ČSN EN 13 748-2, ČSN EN 13 318, ČSN EN 13 813Abrasion tester with wide abrasion wheel, according to standards: EN 13 38-13 42, 1342, ČSN EN 13 748-1, ČSN EN 13 748-2Abrasion tester „BCA“ for determinatiopn of the wear resistence, according to standards: ČSN EN 13 892-4