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Zhejiang Jiande Longhua Plastic Chemical Co., ltd. is a specialized research, production and trade enterprise of food grade ground calcium carbonate, toothpaste purposed natural ground calcium carbonate and ultra-fine ground calcium carbonate. As the director unit of China Oral Care Industry Association, Longhua now is one of key manufacturers of China for ground calcium carbonate products and a high-tech enterprise of Hangzhou city. "Saiyu" is the famous brand of our company.Longhua is the first licensed manufacturer in Zhejiang province for food additive ground calcium carbonate, and we provide our main product-toothpaste purposed natural ground calcium carbonate (hi-tech product) for Procter & Gamble Company now. Especially, our toothpaste purposed natural ground calcium carbonate and food grade ground calcium carbonate are the "new products" of Zhejiang province. Due to heavy attentions on the investment in professional research, we have successfully and successively developed calcium carbonate for plastic floor and calcium carbonate for module carpet, and then established cooperative relationships with large enterprises in these fields of world.Our company was established in 1984. Located in Datong Industrial Park at the bank side of beautiful Qiandao Lake in Jiande city of Hangzhou region, we enjoy good location and convenient transportation for we are very close to Hangxinjing Expressway, national highway 320, national highway 330, Jinqian railway and Hangqian high-speed railway. After more than 20 years of efforts, we now have become a leading company in this industry, with over 20 technicians and rich experiences in the production of heavy calcium carbonate. Equipped with 10 pieces of the most advanced ultra-fine powder production line of China, modern testing center and high-tech testing equipment, we annually can produce 200,000 tons of products, including 150,000 tons or more of ultra-fine ground calcium carbonate.At present, we have two mines of calcite ore: covering an area of more than 133,400sqm, these two mines have a proved reserve of 26 million tons, and can produce 300,000 tons of high-quality ores every year. Tested by state authorities of quality inspection and mine, our natural big calcite, compared with the similar products, owns higher calcium carbonate content, less oil absorption and better whiteness, and the assay of harmful minerals is close to zero.Our company pays attention to quality management, and establishes a total quality management system from sorting of raw materials, control of production process and inspection of finished product to after-sales service. Under the supports of this system, we are able to guarantee the quality of our products can meet the requirements of users. Now, we have certificated to ISO9001 quality system and ISO14001 environmental management system, and carry these systems out in daily operation.Under the supports of leading technologies, we have won customers' trusts for stronger comprehensive strength. We aim to get mutual development with customers by making innovation and providing excellent service. Sticking to such tenet of "high quality, high staring point" and upholding such philosophy of "quality prior, credit stressed, management based, service sincere", we are doing our best to offer you all specifications of high-quality calcium carbonate products!