Filter for many years to focus on environmental protection industry, is a and r &d and production as one of the industrial company, successively develop innovative filter for more than 200 new products, become the domestic cleaning industry leader in environmental protection, products dedicated to machine exhaust gas purification, dust removal environmental protection, liquid filtration separation, and other fields, including filter element filter material chooses the hv, Buddha, Japan toray toray, Korea kolon kelon, South Korea ahlstrom Austin dragon import filter material, and on the basis of the filter material in the domestic manufacturers cooperation developed tew nano coating fabric, ptfe membrane filter material, to fill the domestic blank, and replace success: the United States donaldson donaldson, Japan amano Ann can full, American pall pall, hydac Germany dh, and other import brands, many times awarded by langfang: innovative companies, the industry pacesetter, etc.