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Dongguan Kerong Environmental Appliance Manufacturing Co., Ltd.Guangdong Sheng, China
Tianjin Shengda New Material Co.,LtdTianjin Shi, China
Ningbo Hangda Electronic Technology Co., Ltd.Zhejiang Sheng, China
Yantai Xianhua Chem Tech Co., Ltd.Shandong Sheng, China
Chongqing Xingji Gear Co. Ltd.Chongqing Shi, China
ALPHA Optical Co. Ltd.
ProDelta Investments BVZuid-Holland, Netherlands
Kunshan Unelectra Electric Co. Ltd.
Chongqing Huiye IoT Technology Co., Ltd.Chongqing Shi, China
Power Supply Service Center of State Grid Heilongjiang Electric Power Co., Ltd.Heilongjiang Sheng, China
Changchun Zhongsheng Technology Development Co., Ltd.