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Huona (Shanghai) New Material Co., Ltd.
Zhuzhou Hongtong Tungsten Carbide Co., Ltd.
Shandong Hongtai Science and Technology Co., Ltd.
Jiangyin Entret Coating Technology Co., Ltd.
Xinle City Hongyuan Carbon Black Sales Center
Jinan Xinyu Cemented Carbide Co., Ltd.
BAOFULL CO., LIMITED