Comprehensive mining Both the coal Oil, natural gas, steel and chemicals. The space flight industry. Communication and transportation equipment, ship, train, a medical tool. Agricultural machinery.
Mining services for the oil, gas, coal and steel, chemicals, aerospace, aircraft industry. Communication equipment, medical instruments and freight trains. Agricultural machinery
Integrated mining and coal, oil, natural gas, steel, chemicals, air space industry, communication equipment and transport. The ship, train, medical instruments, agricultural machine.