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Jiangsu Tianyuan Experiment Equipment Co., Ltd.
Rigchina Group Company
Labmen Instrument Limited
Zhangjiagang Chuangpu Machinery Co., Ltd.
Hebei Xukang Meter Manufacturing Co., Ltd.
Shanghai Cixi Instrument Co., Ltd.
Weifang Greatland Machinery Co., Ltd.
Wenzhou Luosimeng Machinery Co., Ltd.
Movel Scientific Instrument Co., Ltd.