JJTYNCCICTC.COM

Tengchong Zhongjian Jewelry Testing Co., Ltd. is a professional testing company mainly engaged in jewelry and precious metal testing and identification business, which is fully invested and constructed by China Certification & Inspection Group Yunnan Co., Ltd. in Tengchong. The company was established in January 2013 and has two laboratories, namely the headquarters and the trade city. Both of them have obtained national CMA certificates, CNAS certificates, and proficiency testing certificates. The testing scope mainly covers 4 major categories of products, including jade, gemstones, organic gemstones, etc., and more than 40 sub-items. The certificates that can be issued include jadeite, Myanmar amber, Huanglongyu, and southern red agate, etc. The main testing equipment includes Fourier transform infrared spectrometer, digital refractometer, swing-arm gem microscope, bench-top spectroscope, electronic balance, density detector, multi-functional gem identification box, etc., more than..