... straining element/equipment.A, overview Y fluorine-butterfly filter is used to remove corrosive medium impurities, protect ... Nickel Cast iron Steel Plastic Rubber etc.Fifth, Function:These strainers are used in pipelines to protect ... , such as air filter, water filter, oil filter, carbon filter, acid filter, oil purifier, filter bag, bag filter, filter cartridge , filter equipments etc.Reason 4Shanghai ...