Protective film products, which are widely used in stainless steel plate, aluminum plate, mirror panels, titanium plate, color steel plate, decorative plates, plexiglass panels, fire board, marble slabs, curtain wall, steel profiles, security doors, Futan board, PVC, PET chip board, glass, instruments, household appliances, air-conditioning, high-end furniture, automobile manufacturing, and other industries indispensable protective film material