PC shell protective film 1)After long-term use, non-foaming, non-wrinkling. ... hardness 3)the edge will not tilt 1. The PC shell protective film formation services paste, after long-term use, non-foaming ... year two years, the edge will not tilt. 3. The shell protective film exclusive use of special glue, never corrosion chassis. 4 ... up the old film, never glue residue. Notebook PC shell protective film