... : Dapeng Performance: acid proof, alkali-resisting, heat-resistant, fireproof, anti-staticApplication: automobile engine system, filterSuitable user: chemicals Aperture ratio: 80 ... , copper wire, phosphorus copper wire, nickel wire, polyamide fiber, polyester silk, F46 silk, polyethylene silk, interwoven wire using metal wire ... liquid foam in air and also used as air filter in cars and tractors ...