- Sinorig Oilwell Service Limited
- Address:No 258,century city road,tianfu new area,Chengdu Chengdu, Sichua
- Liaocheng Durable Drilling Machinery & Equipment Co.,Ltd.
- Address:Triumph Bldg., Development Zone, Liaocheng, Shandong, China Liaocheng, Shandong
- Shandong Yokohama Rubber Products Co., Ltd
- Address:Shengli Street Weifang, Shandong
- PetroMaterial
- Address:Qing County Cangzhou, Hebei
- Chengdu YanXi Import and Export Foreign Trade Company LTD
- Address:ShiJiaZhuang Yuhua District Jianshe Street and Huaian Road Shijiazhuang, Hebei
- Acedrills Co.,Ltd
- Address:Huaguoyuan Street, Nanming District Guiyang, Guizhou
- Henan Starockdrill Equipment Co., Ltd
- Address:No.5 Building XinPu RD, ERQI Zone, Zhengzhou, Henan- China Zhengzhou, Hena
- Qingzhou Real Mining Equipment Technology Co.,Ltd
- Address:Qingzhou city Weifang, Shandong
- HeJian TengDa Petroleum Company
- Address:河间市西村乡西村 Cangzhou, Hebei
- Shicheng Changxin Mining Machinery Equipment Co., LTD
- Address:Shicheng GuZhang industrial park Ganzhou, 江西
- Henan Shibo Mechanical Engineering CO.,LTD?HENAN SHIBO MECHANICAL ENGINEERING CO.,LTD?
- Address:Wulong Industrial Park，Zhengzhou City,Henan,China. Zhengzhou, Hena
- Jiangxi Shichengjin Mining Machinery Manufacturing Co. Ltd
- Address:wenFang Industrial Zone II East No. 1 Ganzhou, Jiangxi
- Cangzhou Olympic and Trade Co., Ltd.
- Address:Cangzhou City, Yanshan Province, Hebei City, East Road, north of the steel market Cangzhou, Hebei
- Qingdao YHS Steel Fabrication Corporatio
- Address:A2-3 No. 1188 Lanzhou West Road Qingdao, Shandong
- SG Industry (China) Co.,Ltd
- Address:3F, B16 bulding, Hengfeng Ind. Park,Hezhou,Xixiang Town, Bao&＃39;An Dist. Shenzhen, Guangdong
- Zhuzhou Jinggong Cemented Carbide Manufactory
- Address:JingGong Industrial Park, Kunlunshan Road, Tianyuan District, Zhuzhou, Huna
- Weifang Huaxia Bentonite Co,Ltd.
- Address:Meicun Town Fangzi District,Weifang(23.5kilometers from Weifang on Weishi Road) Weifang, Shandong
- Samrukgrou
- Address:沈河区友好街10-3 Shenyang, Liaoning
- Shandong Iraeta Heavy Industry Stock
- Address:No.9001 JIWANG ROAD Jinan, Shandong
- Techgong Shanghai International Trade Co., Ltd
- Address:Building No.5 688 Bei Jiang Ju Road,Minhang District Shanghai Shanghai, Shanghai