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
LR20 Manganese alkali dry cell Battery, Mine Detector Mine Detector Description UMD-III mine detector is a widely used hand-held (single-soldier operating) mine detector. It adopts high frequency ...