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China Big S&T Dev (Group) Co.,Limited

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Qingdao Xinli Metal Products Co. Ltd

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Chongqing Huansong Industries (Group) Co. Ltd

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SDI Logistics Co. Limited

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Yongkang Jinling Vehicle Co.Ltd.

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ELEVEN LOGISTICS LIMITED

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SDI Logistics Co. Limited

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Shenzhen ATR Industry Co. Ltd

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Qingdao Longwin Industry Co. Ltd

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Yongkang Jinling Vehicle Co.Ltd.

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Ningbo Jinhong Electronic Co.,Ltd

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Shandong Highling Dredging Equipment and Machinery Co.,Ltd

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China Big S&T Dev (Group) Co.,Limited

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ELEVEN LOGISTICS LIMITED

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Rico Technology Co. Ltd

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Weihai PTC International Co. Ltd

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Shandong Highling Dredging Equipment and Machinery Co.,Ltd

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Shandong Wuzheng Group Co. Ltd (three-wheel vehicle)

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Jiangsu Shangyong New Material Co., Ltd

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China Big S&T Dev (Group) Co.,Limited