Beijing Heweiyongtai Sci & Tech Co., Ltd. Beijing Heweiyongtai Sci & Tech Co., Ltd. was established in the beginning of 2008. We are a hi-tech enterprise specializing in manufacturing and trading
Portable Drugs Detector Model: XT12-03 Description The XT12-03 is an advanced and cost-effective portable drugs detector which adopts pseudo random sequence ion door-opening technology and Hardmard ...