I have 2 pawnshops in tampa. We are looking to purchase 2 Jewelry Spectrometer X Ray Electronic Gold show more ...
need a machine to test purity of gold and silver in an article by non destructive testing. the show more ...
XRF Gold Tester for Gold Purity Testing EXF8200 pls send bast price show more ...
Hi,I would like to know the price for Ideal Gold Tester for laboratory,hallmark EXF9600.I am in 1 us show more ...