Characterized with its milkiness, brightness, hardness, anti-corrosion, heat-resistance and easy-going through for micro-waves, the series of opal glassware are made from natural silicon and high grade chemicals which are melted, cooled down and then solidified as non-crystal inorganism. The products are in compliance with the state hygienic criterion owing to their advantages of being non-poisonous, odourless and without qualitative change. The beautiful Designs made at the decoration process greatly upgrade the products and make them look more elegant and attractive. Since the glassware is toughening treated, it turned out to be more strong and temperature-resistant. It is with temperature differential of T>125C. The products are widely accepted for the fact that they can be used in micro-wave ovens and washed in kitchen washing machinery.