Manufacturing of special equipment (excluding manufacturing of licensed professional equipment); manufacturing of general equipment (excluding manufacturing of special equipment); mechanical parts and parts processing; sales of machinery and equipment; manufacturing of auto parts and accessories; manufacturing of motorcycle parts and accessories; manufacturing of off-highway recreational vehicles and spare parts; wholesale of auto parts and accessories; retail of auto parts and accessories; motorcycles Wholesale of vehicles and spare parts; retail of motorcycles and spare parts; sales of off-highway recreational vehicles and spare parts; manufacturing of hardware products; retail of hardware products; road cargo transportation of ordinary freight vehicles with a total mass of 4.5 tons and below (except online freight and dangerous goods); industrial robot manufacturing; industrial robot sales; industrial robot installation and maintenance