The most economical keyboard system for use at a fixed angle. The connection plates between the keyboard and the panel are made of 3 mm sheet metal material with laser cutting technique and the paint color is RAL7035. In this product energy, appeariance, signal etc is provided with the layout of the entire cable flow by the bellows system. The usage area (width-height) of the keyboard is shaped according to the demands of our customer. The operating depth of the keyboard is available in two sizes which is of 60 mm and 90 mm