Rongjia filter system is the preferred brand of filter element in China. This company produces oil filter, diesel oil filter, fuel cell, the oil-water separator, cooling water filter, filter, diesel engine rotor centrifugal oil filter, hydraulic oil filter, air dryer, air filter, air filter, car filter, oil passenger car, commercial car filter, heavy card precision filtration, agricultural machinery, engineering machinery filter system wood oil filter, outboard machine, ship Engine filter element, high pressure common rail filter technology, the product components from Shanghai Baosteel steel, Osilon curing paper, HV oil and water separation compound filter paper, butadiol rubber and other high-quality materials processing.