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Under the E-Dingxing®™ brand: Beijing E-Dingxing Group Co., Ltd., Beijing E-Dingxing Technology Development Co., Ltd., E-Dingxing Environmental Protection Technology (Beijing) Co., Ltd., Hebei E-Dingxing Environmental Protection Technology Co., Ltd……
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EMAIL:bjyidingxing@163.com
ADDRESS:Zhongguancun Science Park, Fangshan Park, Innovation Valley, Beijing

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