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
SOSENSE-E1 Small Portable Explosive Detector with Colorful LCD screen Specification: Technology IMS and pseudo-random-sequence ion gate technology Detecting Capability Black Powders, Ammonium Nitrate ...