1.Vacuum cleaner fabric dust bag material: PP, PE, PPS, P84, PTFE, Glass fiber, Antistatic; Antistatic , PTFE, Fiber glass cement (asphalt ) plant vacuum cleaner dust bag ... ×20cmBreaking strength (Weft)>1800N/5×20cmBreaking extension (warp)<30%Breaking extension (weft)<30%Working temperature240°CPeak temperature260°CFinishingPTFE impregnation,Laminating, coating 3 ...