Shanghai Wei"en technology and trading company mainly embarks on exploiting and applying advanced technical system products. We produce a wide range of products from theft-proof alarm to general-purpose mental detectors. The company had been adhering to the financial principle and contributes significantly to the value creation chain of its customers by providing its customized technical products. The staffs of the work have accumulated rich experiences in the field of safe guard and environmental protection. They are making their endeavor to provide customers with super services for creating excellent products. Exploration has been made and development has been achieved at a moderate rate and a safe scale. We are in deep believe that in the near future, Wei"en technology and trade corporation will become a comprehensive trading group with adequately influential and competitive strength in the economic field.