Круг калиброванный.
ГОСТ 7417-75
Диаметр,мм: 3, 4, 5, 6, 7, 7.8, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 30, 31, 32, 34, 35, 36, 37, 38, 39, 40, 41, 42, 44, 45, 46, 48, 50, 52, 53, 58, 60
УП "ТРЭЙДМЕТАЛЛ-ОЛДИ"
+375447717221
+375447717224
+375447717235