... , P84, PTFE, Glass fiber, Antistatic; Antistatic , PTFE, Fiber glass cement (asphalt ) plant vacuum cleaner dust bag HL FILTER dust collector filter bag ... )<30%Working temperature240°CPeak temperature260°CFinishingPTFE impregnation,Laminating, coating 3. Cement industry bag filters : PTFE needle felt dust bag application : Applicable ...