Manufacturing of metallurgical specialized equipment; sales of metallurgical specialized equipment; manufacturing of forgings and powder metallurgy products; sales of forgings and powder metallurgy products; manufacturing of metal processing machinery; non-ferrous metal rolling processing; general equipment repair; specialized equipment repair; electrical equipment repair; sales of renewable resources; labor services (excluding labor dispatch); road freight transport of ordinary goods with total mass of 4.5 tons or less (excluding online freight and dangerous goods); domestic freight forwarding; domestic container freight forwarding; road freight transport station operation.