GRADO DIN 5401, CLASSE III 50 PZ 2.00MM; 50 PZ 2.50MM; 50 PZ 3.00MM; 50 PZ 3.50MM; 50 PZ 4.00MM; 50 PZ 4.50MM; 50 PZ 5.00MM; 30 PZ 5.50MM; 30 PZ 6.00MM; 20 PZ 7.00MM; 20 PZ 8.00MM.