Manufacturing of pumps and vacuum equipment; manufacturing of motors; sales of pumps and vacuum equipment; manufacturing of fans and fans; sales of fans and fans; manufacturing of auto parts and accessories; retail of auto parts; wholesale of auto parts; manufacturing of metal tools; sales of metal tools; manufacturing of motorcycle parts; wholesale of motorcycles and parts; retail of motorcycles and parts; processing of mechanical parts and parts; sales of mechanical parts and parts; manufacturing of gas compression machinery; sales of gas compression machinery. Licensed items: import and export of goods; import and export of technology.