Manufacturing of hydraulic power machinery and components; sales of hydraulic power machinery and components; manufacturing of pneumatic power machinery and components; sales of pneumatic power machinery and components; manufacturing of auto parts and accessories; wholesale of auto parts; retail of auto parts; manufacturing of motorcycle parts; retail of motorcycles and parts; wholesale of motorcycles and parts; manufacturing of forgings and powder metallurgy products; sales of forgings and powder metallurgy products; import and export of goods; import and export of technology.