以各種光學光電子,半導體微電子,電子元器件生產加工用真空設備及其零部件為主 Production of vacuum evaporation equipment (for quartz crystal, optical films and electronic parts), sputtering equipment, ion plating equipment, vacuum metallurgic equipment (for dissolution,heatprocessing, sintering and degassing), vacuum exhaust equipment and general vacuum equipment such as oil-sealed rotary vacuum pumps and oil diffusion pumps.