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Luoyang Bearing Science & Technology Co., Ltd.
SHANGHAI JIABEI INSTRUMENTS CO., LTD.
Pego Group (HK) Co., Limited
Quanzhou Shuangyang Diamond Tool Co., Ltd.
Nanjing Kehua Instrument & Meter Co., Ltd.
Shanghai Boqu Instrument Co., Ltd.
Tianjin Grewin Technology Co., Ltd.
Ningbo Shunjay Instruments Co., Ltd.
Yi Wu Lv Yun Co., Ltd.
Beijing GFUVE Electronics Co., Ltd.