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Zhenjiang Greatwall Microtunnel Equipment Science & Technology Co., Ltd.
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Anhui Tangxing Equipment Technology Co., Ltd.
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JIANGSU XUAN XUAN HEAVY MACHINERY CO., LTD.
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Zhenjiang Greatwall Microtunnel Equipment Science & Technology Co., Ltd.
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Quzhou Zhongdu Machinery Technology Co., Ltd.
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Anhui Tangxing Equipment Technology Co., Ltd.
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JIANGSU XUAN XUAN HEAVY MACHINERY CO., LTD.
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Zhenjiang Greatwall Microtunnel Equipment Science & Technology Co., Ltd.
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Anhui Tangxing Equipment Technology Co., Ltd.
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Chongqing Huaqi Cable Co., Ltd.
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Zhenjiang Greatwall Microtunnel Equipment Science & Technology Co., Ltd.
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Yanggu Jixing Drilling Tools Co., Ltd.
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Quzhou Zhongdu Machinery Technology Co., Ltd.
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Anhui Tangxing Equipment Technology Co., Ltd.
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JIANGSU XUAN XUAN HEAVY MACHINERY CO., LTD.
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Zhenjiang Greatwall Microtunnel Equipment Science & Technology Co., Ltd.
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Anhui Tangxing Equipment Technology Co., Ltd.
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Sichuan Lanhai Intelligent Equipment Manufacturing Co., Ltd.
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Anhui Tangxing Equipment Technology Co., Ltd.
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Chuanyan Drilling Tools (Shandong) Co., Ltd.
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JIANGSU XUAN XUAN HEAVY MACHINERY CO., LTD.
Yd2000 Rock Microtunnel Boring Machine Pipe Jacking
Zhenjiang Greatwall Microtunnel Equipment Science & Technology Co., Ltd.
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Anhui Tangxing Equipment Technology Co., Ltd.
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KES Separation Machinery Tianjin Co. Ltd
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JIANGSU XUAN XUAN HEAVY MACHINERY CO., LTD.
Yd1000 Rock Microtunnel Boring Machine Pipe Jacking Machine
Zhenjiang Greatwall Microtunnel Equipment Science & Technology Co., Ltd.
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Anhui Tangxing Equipment Technology Co., Ltd.
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Chongqing Huaqi Cable Co., Ltd.
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JIANGSU XUAN XUAN HEAVY MACHINERY CO., LTD.