The readout microscopes, model 639-2040,639-2045, are designed for determining of indentation in brinell hardness testing. They can be also be used for measuring the width are length of scale mark, slit,key slot and dent, as well as checking metal case quality, density of fibre and field specimend, etc.
The readout microscopes, model 639-2040,639-2045, are designed for determining of indentation in br