Rulers are curved and rulers checking, plates are intended for carrying out checking works. A wide range of calibration lines and slabs made of natural granite. The natural properties of granite (lack of internal stresses, high hardness, low coefficient of thermal expansion, high damping coefficient) give a significant advantage to granite slabs and calibration rulers.
Cast iron measuring rulers | Light-alloy calibration rulers | I-beam granite rulers | Calibration rulers type 'Bridge', cast iron |
Rulers with double-sided bevel | Curved rulers | Rulers are sinus |