... inchDurability: Scratch-free; More than 50, 000, 000 touches in one location without failure.Touch medium: finger,gloved finger,rubber ... altitude: 3800mAnti chemical properties: The active area can resistant to all chemicals what do not affect glass, such as Acetone, ... can provide the customization for the touch panel size according to the customers' needs.2, The technical specification above, and ...