With more than 20 years experience, TianJin Polywis Technology Co., Ltd is the first enterprise in china specializing in designing, development, production and marketing of analytical instrument Energy-Dispersive X-Ray Fluorescence (EDXRF) systems . Polywis lead the market in technological innovation and development for carter to the customer request. Till now our XRF spectrometers are widely used in precious metal testing , jewellery, metallurgy , mining, glass , petroleum , chemical , environmental protection, toy , pawnshop, textile ect non-destructive analysis filed with ISO9001:2008 approved. The desktop gold tester machine was awarded the gold award in the INTERNATIONAL HIGH TECHNOLOGY FAIR in 1993 . American application science museum take POLYWIS desktop XRF as exhibit in the same year . 2010 POLYWIS set up TianJin East Legend Co., Ltd specially in promoting Polywis XRF analyzer abroad .