DIAMOND

We are the manufacturer of jewelry testing instruments with decades of industry experience. Adhering to the spirit of continuous innovation, in the past decades, we have been continuously developing new functions of our products... Over the decades, our company has built a reputation as a respected jewelry/diamond inspection equipment manufacturer in the world. Taking each customer access to a high quality equipment at affordable prices, we choose premium parts and set relatively low prices. With almost no requirements for testing samples, our equipment can meet almost all needs of different users... Nanjing Tungsten Technology Co.,Ltd, the professional manufacturer of jewellery testing equipment is an enterprise integrating research, development, production and trade for exceed 20 years.

Primary location: Nanjing China