The Supamic filter element is made of nylon by Melt-blowning and spinning one time , inner support frame and end cover on both bottoms made of nylon. Its structure is strong enough not to be easily disposed and doesn't contain any adhesives. Besides ,there will not exist the bad phenomenon of stripping The filter layer , shedding fiber and secondary pollution.Its special fiber structure makes it possible to have better filtering performance , higher capacity of pollutant,lower initial pressure and longer service life.Our Supamic filter's structure and filtering performance is the same as the USA- PALL's