Notch prototypeThis equipment is used for preparing notch samples in non-metallic material impact toughness tests using cantilever beam and simply supported beam impact testing machines. It can be used by research institutions, colleges, and non-metallic material testing laboratories to prepare notch samples The main technical parameters of this machine comply with the requirements of ISO179, GB/T1043, and GB/T1843. It is a simple structure, easy to operate, fast and accurate sampling device.