WEI MIN Co., Ltd. ---- The main business is to manufacture test instrument for diode semiconductor. Like Diode tester, LED tester and Electrostatic Discharge Simulator etc. With the quality materials and components, our working teams well-trained can make high-quality products under the powerful support of our experienced engineers. Our continuous concentration on quality improving & technology upgrading and also accept special designed test specification for our customer. It brings us good reputation in the local market.