• Material: glass • Color Classification: Square trumpet 10.5*3.5cm Square large 17.5*4.5cm Round medium 13*4.2cm Diamond corrugated round trumpet 13*3cm Diamond corrugated round large 19*5cm Round trumpet 10.5*3.5cm • Packing: Softcover • Description: Hand-carved and fired, exquisite workmanship, clear and uniform, no stains, full of honorable appearance, crystal clear, beautiful and stylish, rinse with water, easy to use, free of heavy metals, no radiation, strong and durable • Use scene: living room, airport, railway station, meeting room and other public smoking places1, production process: material, embryo pressure, coarse polishing, fine polishing, drilling, engraving, sandblasting, viscose, quality inspection, packaging. 2, crystal product classification: faceted, planar, faceted plus plane and hand carved four. 3. Processing technology description: (1) Material opening: the whole material is sawed to the shape and size required by the embryo with a large saw blade at high speed. (2) Embryo pressure: the mold is used to make the required size and shape of the finished product, and then the raw material is melted at high temperature to more than 900℃, flowing into the mold and die casting. (3) Rough polishing: it is to press the hair embryo of the mold, and grind the cutting line of the finished product directly with the diamond disk. ④Fine polishing: in the rough polishing, polishing powder to grind the finished product until crystal clear. ⑤Drilling: is in the crystal finished product is not completed, according to the size and position of the required drilling, to drill processing, such as tabulating parts, pen container, bottle hole. ⑥Screen printing: crystal surface with different colors for effect processing, color layer is thicker, rear force can fall off. ⑦Plating color: the use of similar electroplating technique in the crystal surface with different colors, layer is thinner, friction can scratch, because the plating color is often located at the bottom, so in the plating color bottom often use other objects attached. ⑧Carving: three-dimensional sense, high technology, fine workmanship, high cost. Divided into manual carving graphics, machine carving text. 9. Sandblasting: three-dimensional sense is weak, relatively smooth, no concave and convex, machine engraving text, graphics and so on after the effect processing. ⑩ Laser carving: using computer-aided laser equipment to shape three-dimensional patterns in crystal objects, with good artistic effect.