Founded in 1982, Hangzhou down Photoelectric Instrument Co., Ltd. is located in the Hangzhou West Lake Science and Technology Park, it is a professional development, manufacturing, sales of grain and oil equipment environmental equipment and high-tech enterprises. The company's aim is: "market-oriented, rely on technological innovation, the development of scientific instruments have independent intellectual property rights." Major manufacturing: mercury analyzer, falling value of the tester, the smart white Tester gluten analyzer, Lovibond colorimeter, trace uranium analyzer, test sieve pink circular magnetic metal detector, the oil smoke point tester, tea screening machines, electric filters and other equipment. The company is now under the Ministry of scientific research, manufacturing, operation and after-sales service of four Division. Research Department to hire professors and scholars to conduct research experts work products, the introduction of professionals, and constantly develop new products and actively looking for new products suitable for the market need and developed. Manufacture of instrument many times when SEPA, Hunan Environmental Protection Bureau, Hubei Environmental Protection Bureau, Henan Province Quality and Technical Supervision, and other units of bidding bid, has been widely praised and recognized by the national authorities of our customers.