... etc Touch screen:SAW or infared touchscreen or resistive touchscreen. Surface Acoustic Wave touchscreen* Resolution: 4096*4096, zaxis256 grade* Material ... : more than 50,000,000 times*Surface hardness: equivalent to glass,7 Mohs*Dust-proof, explosive proof*Durability:5years Grade ... plastic-spray,1.5-2.0MM steel,moisture-proof,anti-rust,anti-acid,anti-dust Packing:foam ,carton,wooden case Dimension: 1. ...