Feature: 1、Be made of long length fiberglass; be made by the method of superimposing the non-woven fabric; 2、Fire retardancy, withstand high temperature to 450℃; 3、Excellent anti-chemical properties, low moisture absorption, long service life; 4、Frame can be made of galvanize and stainless steel according to requirement. Standard size: 500*500*50mm Application: Suitable for general coarse dust filters processing and hotwind high temperat