... are high temperature, corrosion resistance, dimensional stability. Glass fiber fabric filter bags are high temperature, corrosion resistance, dimensional stability, ... , and its operating temperature resistance is higher than normal fiber filter.specificationCMN-FEMN-Fweight: g/ m29501000air permeability : L/ ... -treatmentPTFE (Ptfe treatment)PTFE (Ptfe treatment) glass fiber nonwoven filter bag