RUBY is an OEM manufacturer of vacuum and food-grade sanitary components located in ShangHai,China. Our primary focus is in the field of high and ultra-high vacuum apparatus for the research and development disciplines as well as semiconductor, aerospace,fluid equipment and other practical applications.Ruby’s product line includes industry standard devices and components as well as custom machined products and contract manufacturing.RUBY is an OEM manufacturer of vacuum and food-grade sanitary components located in ShangHai,China. Our company specializes in designing,producing and selling vacuum and sanitary components,All products can be manufactured according to degrees of finish,materials, industrial standards and drawings.