... material: PP, PE, PPS, P84, PTFE, Glass fiber, Antistatic; Antistatic , PTFE, Fiber glass cement (asphalt ) plant vacuum cleaner dust bag ... Breaking extension (weft)<30%Working temperature240°CPeak temperature260°CFinishingPTFE impregnation,Laminating, coating 3. Cement industry bag filters : PTFE needle ... ~115. HL dust collector filter bag construction, production line and some application show :