- Hexin Machinery Co.,Ltd
- Address:No128, Yanji Road Qingdao, Shandong
- Cangzhou GuoSheng Oil Drilling Equipment Co.,Ltd.
- Address:No.19,Nanhuan road Cangzhou, Hebei
- Machinery Moving Roller Skid
- Address:xiangjiang street Qingdao, Shandong
- Zhengzhou Mining Machinery
- Address:Jinshui Road Zhengzhou, Hena
- Beijing Dongshun Bowang Petro-Machinary Co.,LTD
- Address:Room407，No.2，Ganluyuan，Shilipu，Chaoyang District Beijing, Beijing
- Cangzhou JW Petroleum Machinery Co.,Ltd
- Address:Hejian Shijing Twon Mengjiazhuang Cangzhou, Hebei
- Xiagong Limited Company
- Address:Yanggu county office qiaorun Dongjiaohai village Liaocheng, Shandong
- Shandngshenlirigging
- Address:Shandong jining high-tech zone jinghang canal industrial park city road no. 9 Jining, Shandong
- Sinodrill
- Address:16F Xiongjun International Building, Weiqing Road, Guiyang, 550003, China Guiyang, Guizhou
- He Nan Hong Ji Ji Xie
- Address:No.169, North taojia Road, Zhengzhou City, China Zhengzhou, Hena
- Yantai Jinyang Hydrocyclone Co.,Ltd
- Address:No 25 jingsi road Yantai, Shandong
- Zhengzhoudehongmachine
- Address:dongsanshilipu Zhengzhou, Hena
- hannxi hainaisen petroleum technology Co.Ltd
- Address:haaxi province xian city Xian, Shanxii
- iso9000
- Address:KeXueDaDao,TanXiang Road Zhengzhou, Hena
- Yantai Sanmon Machinary Equipments Co., Ltd
- Address:Room 1306,No 462,South Road,Zhifu District,Yantai 264000 China Yantai, Shandong
- Hebei Ranking Bit Co.
- Address:industry Zone Heijian Cangzhou, Hebei
- KOne Carbide Tool Ltd
- Address:No 777 Haike Rd., Cross-Strait Industrial Park, Wenjiang Chengdu, Sichua
- Xinxiang Techang Vibration Machinery Limited Company
- Address:No.60, Sizhuangding Industrial Park, Xinxiang City, Xinyang, Hena
- He Bei Sloate Petroleum Dedicated Pipe Manufacturer Co., Ltd
- Address:Room 915, 9th,floor, Shou Chuang building, Dong Cheng district, Beijing ,China. Beijing, Beijing
- Luoyang Hongxin Heavy Meachinery Co., Ltd.
- Address:Luoyang City Luo new industrial park Luoyang, Hena