National

Recently, The mine flameproof and intrinsically safe vacuum electromagnetic starters QJZ-80/1140 (660), QJZ-120/1140 (660), QJZ-200/1140 (660), QJZ-315/1140 (660), qJZ-400/1140 (66) are independently

Recently, The mine flameproof and intrinsically safe vacuum electromagnetic starters QJZ-80/1140 (660), QJZ-120/1140 (660), QJZ-200/1140 (660), QJZ-315/1140 (660), qJZ-400/1140 (66) are independently

Recently, 12 models of single-sided curved rail side-dumping mining trucks independently developed and produced by China Coal Group Manufacturing Corporation have successfully passed the certification

Recently, with the official approval of the State Intellectual Property Office, 7 companies under China Coal Group successfully obtained 30 national trademark registration certificates at one time. Am

Recently, two software products independently developed by Shandong China Coal Group-China Coal CRM management system [abbreviation: CRM system V2.2.10] and HIS medical management system [abbreviation

Recently, the DFB (1400-4400 standard specifications)/300, DJB600/470, DJB800/420, DJB (1000, 1200)/300 metal roof beams independently developed and produced by China Coal Group, of which 4 types of h