1. Guangdong Jinzhenglong Technology Co., Ltd.: a national high-tech enterprise with 32 patents, mainly selling platinum, palladium, rhodium, gold and silver. , in line with national standards and industrial use requirements.
2. Guangdong Wuhai Technology Co., Ltd.: Located in Dongguan, it covers an area of 167 mu with a construction area of 260,000 square meters. There are four sub-factories, namely, two devices, sheet metal, electronic control and final assembly, with laboratories for electronic control, noise, enthalpy difference and logic, as well as first-class automatic production lines and production testing equipment at home and abroad.