To meet those needs, engineers at Ametek Advanced Measurement Technology, Paoli, Pa. (ametek.com),upgraded an earlier offering and now manufacture the Detective-Ex-100. It uses a larger, high-purity ...
Earlier, people depended on touchstone tests or the local jeweller’s word. Those methods were quick but not always accurate.
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback