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Shanghai DENP Industrial Co., Ltd.
Qingzhou Keda Mining Machine Co., Ltd.
Henan Yugong Machinery Co., Ltd.
GongYi HengYuan Industry Co., Ltd.
Shandong Chuangji Imp. and Exp. Co., Ltd.
Zhengzhou Ruiyong Machinery Equipment Co., Ltd.
Gongyi Hengchang Metallurgical Building Material Equipments Plant
Nantong Yutung Industrial Co., Ltd.
Zhengzhou Leabon Import and Export Trading Co., Ltd.
Henan Dajia Mining Machinery Co., Ltd.
Ji Ning Hengwang Mining Machinery Co., Ltd.