... switch and car making industry.2.Dustproof materials: cosmetic cotton, camera cotton, high-density sponge, filtering sponge, dust net and ... foil, PVC, PET, brown paper, sponge sheath, pearl cotton sheath.5.Heat insulation materials: silicone sheet, transparent mica, ... fiber cloth, heat insulation cotton (fabric).1. Main technical parameter:ModelDII-MQ-320Die cutting ...