HEBEI ROCK FILTER MANUFACTORY CO., LTD. is a professional manufacturer and supplier of Heavy Duty and Light Duty Air Filters, Passenger Car Air Filters, Cabin Filters, Ecological Oil Filter Elements, Hydraulic Filter, etc., founded in 2007 locate at Hebei, China. Our skilled workers amount to 50 with 10 years¡¯ rich producing experiences, all thefilters made following ISO9001:2000.