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Eul & Günther GmbH & Co. KG

Wuhu Deye Friction Material Co., Ltd.Anhui Sheng, China

KAMA GmbHSachsen, Germany

Ying Na Yu

Beijing Huashang Technology Co., Ltd.

Anhui Jianke Energy-saving Building Materials Co., Ltd.

Kenod Environmental Protection Technology Co., Ltd.

Shanghai Institute of Precision Metrology and Testing

Fujian Heshun Carbon Co. Ltd.

Guangdong Hechuangda Electrical Technology Co., Ltd.

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