Filter is usually installed in the hydraulic control valves and other equipment the import side, to prevent particulate impurities into the channel, causing blockage of the valve or other equipment failure and not the normal use, the filter is a hydraulic control valves and precision mechanical products easy to plug must have filtration equipment. Filter is also air conditioning and ventilation systems for pre-filtration, clean room return air filter, high efficiency filter unit of local pre-filter, with easy operation and management, the filtration rate is high, rinse simple and reliable; Filters There are many types, including: Basket style, hand-cranked,