Japanese Style Glaze Teacup and Saucer Set Glass Tea Cup Kung Fu Creative Crystal Coffee Mug Espresso Cups Luxury Sake Cup GiftAncient blowing Blowing workers hold a long hollow iron pipe, One end dipped glass detergent from the furnace, One end is bolwtorch, rolling and blowing on the rolling plate to form a glass bubble, Blow in the mold to form the product and its cooling molding. Colored Glaze is made of artificial crystal (containing 24% lead dioxide) of various colors (colors produced by various metal elements), Rare decorations fired at a high temperature of more than