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Welcome to D.R. Sperry & Company, the premier manufacturer of high-quality filter presses for over 150 years. Our filter presses are used by a wide range of industries, including food and beverage, mining, chemical, pharmaceutical, and more. At D.R. ...

Dazhang Group is a joint-stock enterprise that produces filtration equipment such as filter press and filter, forming R&D, production and sale into an integral system. ShanghaiDazhang Filter Equipment Co.,Ltd founded in 2004, occupies a total area ...