used for axial force inspection of large hexagonal high-strength bolt connection pairs, construction torque inspection of bolt connection pairs, re-inspection of torque coefficient of bolt connection pairs, re-inspection of pre-tension of torsion shear type high-strength bolt connection pairs, and construction torque inspection of torsion shear type high-strength bolt pairs

It is a special equipment for tightening the slip plate during the bolt anti-slip test

Used for anti-slip coefficient test of high-strength bolt connection pairs, high-strength large hexagonal head bolt connection pairs, and torsion shear type high-strength bolt connection pairs

Used to test the impact resistance of metal materials under dynamic load in Charpy impact test (V-type and U-type notch specimens)

Used to provide cooling environment for V-shaped and U-shaped metal impact specimens, so that the low temperature impact specimens of metal materials reach the specified temperature

Used for drawing and forming V-shaped specimens and U-shaped specimens for metal impact tests

A special optical instrument used to determine whether the V-notch and U-notch of metal impact specimens are qualified

Determine the Rockwell hardness of ferrous metals, non-ferrous metals, hard and high-hardness alloy materials, heat-treated materials such as quenching and tempering, plastics and some non-metallic materials such as bakelite