1.PET/PC metal dome switch membrane 2.Second surface pringting ... special requirements, such as Shielding, Windows/Lens Coating, Embossing, Embedded LEDs, UV glossy/matte/textured, EL,LED backlingt,rubber keypad ... etc.The main properties of custom design electronic membrane keypad1. PC /PET as overlay (control panel) 2. Flat keys or ... keys can make different shapes.Products show: PET/PC switch membrane