Shanghai Gongtao Ceramics Co., Ltd. is one of the most leading and advanced ceramic material companies in China, integrating the design, manufacture and marketing of high-tech ceramics. Brand name "SHANGTAO" was formed more than 20 years ago. We specialize in Alumina products, Zirconia products, Magnesia products, Silicone Nitride products and Alumina Nitride products. We have developed advanced skills and technologies. Our products are widely used in electricity, information, power, a