Suk-suk-yung technologies ltd. Is a deep-process technology enterprise that combines research and development, production, sale and servicing of high-end stone-engine materials. The company works in a combination of space aviation, semiconductor, photovoltaic, optical, fibre-optic, chemical, medical and environmental services. The products are pure stone sand, quartz tubes, stone rods, stone slabs, large-calibre stone piping tubes, styroscopes, quartzing sorghum and a variety of stone-based instruments。