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Hebei Xukang Meter Manufacturing Co., Ltd.
Labmen Instrument Limited
Movel Scientific Instrument Co., Ltd.
Rigchina Group Company
Shanghai Cixi Instrument Co., Ltd.
Changzhou Changsheng Power Machinery Co.,Ltd
Weifang Greatland Machinery Co., Ltd.
Beijing Bctrading Science and Technology Co., Ltd.
Zhangjiagang Chuangpu Machinery Co., Ltd.