Wenzhou Donou microporous filtration Limited company, founded in 1986, is located in Tutian industrial zone in Yangfushan in Wenzhou, and is an enterprise which professionally engages in the research, development, application and production of solid-liquid precise filtration technology. Under branches : Wenzhou Donou Microfiltration Plant of Pressure Vessels, Wenzhou Donou Anticorrosion Equipment Factory, Shanghai Donou Microfiltration Institute. Its leading products are precise microporous PGH activated carbon filter series, precise microporous PGR, PGK solution filter series, PGP, PGX series of ultra-fine powder which is a integrated machine with filtering, washing and pressing, TLC precise microporous filtration system, special pesticide filters, precise recovery filters of ore dressing, 1st and 2nd Class pressure vessels, corrosion-resistant lininge of equipments and pipes with PO, PPS etc. Products have more than 5,000 users throughout based chemicals, fine chemicals, hydrometallurgy, pharmaceuticals, beverages, edible oil, fertilizers, environmental protection and other industries.
Donou microfiltration company is the largest enterprise of polymer precise filtration technology in equipment research and production supplyment at home and abroad, the first in China to successfully develope the technique of a long-efficiency 0.3μm filter medium and 1600mm above bottom cover orifice with quick opening and closing operation. Enterprise, which has high-quality technical research and development, production, sales, pre- and after- sales service team, has the perfect conditions for the production, and has only product testing laboratory at own professions. In enterprise tertiary education employees are over 50% of the total number of employees, high-class engineering technology employees over nearly 30 people, assembling domestic major R & D personnel of microporous polymer filtration media and microporous filter, such as sintered polymer microporous filtration technology inventor, sintered microporous filtration theory and application of technology founder, enjoying special allowance of State Department, former Shanghai Institute of Pharmaceutical Industry, Professor Song Xianhong; having engineering and technical personnels with rich experience in chemical machinery, water treatment and others.
Enterprise attaches great importance to scientific and technological input. So far, Donou microfiltration has dozens of national patents (for inventions, utility models), three scientific and technological achievements through the provincial (ministry) level identification, obtaining second class award of State Environmental Protection Agency (ministerial level) Technology Advancement Award in 1990, third class award of the state medical bureau and Zhejiang scientific and technological progress, state-level new products, for the State Science and Technology Commission as " National Science and Technology Achievements Stress Popularize Project " in the "Eighty-Five Year " and the "Ninety-Five Year" period, the best practical popularize technology ordered by the State Environmental Protection Bureau, one of the outstanding environmental enterprise in Zhejiang, qualified enterprises sampled by the State Quality and Technical Supervision Bureau in 2000, first passing ISO9000, 2000 quality system certification in 2001, obtaining the Science and Technical Middle and Small Enterprise Certificate of Zhejiang in 2003; making in a pressure vessel manufacturing permit in 2004, regarded as the province high-tech enterprise by the Provincial Science and Technology Department in 2005, and for several consecutive years, having been rated triple-enterprise creditn by the agricultural bank, regarded as A-class unit ab
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