2 сентября 2019 года компания HeYang Fengdong получила уведомление от Государственного управления интеллектуальной собственностью Китая о выдаче патента на полезную модель.

Шаньдунская компания China Coal Industry Group | China Coal Mining Equipment (Hong Kong) Company | China Coal Manufacturing Group Company (Каймановы острова) | China Coal Mining Machinery and Electrical Equipment Manufacturing Company | China Coal Mining Parts Company | China Coal Mining Steel Company | China Coal Mining International Trade Company | China Coal Mining E-commerce Company | Yuangu Tourism Co., Ltd. | China Coal Rescue Equipment Company | China Coal Mining Mechanical Equipment Company | China Coal Mining Heavy Equipment Company | China Coal Mining Support Equipment Company | China Coal Mining Import and Export Company | China Coal New Energy Import and Export Company | China Coal Mining Electrical Equipment Company | China Coal Mining Construction Machinery Company | China Coal Mining Electromechanical Equipment Company | Kuke Big Data Company | English official website of China Coal Group | English official website of Zhongyun Group | China Coal Mining Machinery Factory | China Coal Longkou Equipment Manufacturing Company | Shandong Weixin E-commerce Company | Yimei Mechanical Equipment Manufacturing Company | Shandong Luyi Materials Company | Lianchu Cloud Computing Company | Shandong Guyuan Film and Television Co., Ltd. | Shaanxi Coal and Chemical Industry Group Co., Ltd. | Shandong Energy Group Co., Ltd. | Zao Mine Group | China Datang Corporation | Jineng Group Co., Ltd. | China Coal Technology and Engineering Group | Shaanxi Coal Chemical | Shenhua Group | China Energy Investment Corporation | China Coking Coal | Wanbei Coal and Power | Huainan Mining | Fugang Group | China Pingmei Shenma Group | Lu'an Group | Shanxi Coking Coal | Xishan Coal and Electricity | Chuanmei Group | Hengyuan Coal and Electricity Group | Huating Coal Industry Group | Shenhuo Group