Customized metal keyboards with LCD screens can be used to input information such as product numbers, quantities, payment amounts, etc. LCD screen display greatly improves the human-computer interaction experience. Customization can most efficiently realize the functions of different application scenarios and bring the best user experience to end customers. Metal keyboards are wear-resistant, corrosion-resistant and impact-resistant. The display on the keyboard can support different national languages, and the backlight color is also optional.