Membrane switch circuit layer using FPC (flexible PCB). Circuit of high precision, qualifying spacing 1.0mm, the resistance value is very low, soldered LED, stable and reliable performance and long service life. This product is mainly used for computer-controlled function keyboard, feel good, powerful. Autotype F150PET panel with screen printing, Haven this product according to customer needs to design key content, color, effect, the appearance of fine, rich colors. In addition, the product includes an electrostatic shielding layer, so good antistatic effect of the product.