CSI Keyboards is a worldwide leading custom membrane switch manufacturer and custom keypad manufacturer. With our unlimited design and manufacturing capabilities, CSI Keyboards can supply our clients with custom design membrane keypads and custom keypads that meet their needs as a user interface and face plate to their product. We are able to engineer and manufacture custom membrane s... https://uploadimage.io/image/Membrane-Switch-CSI-Keyboards%2C-Inc.-%28978%29-979-3431.VEruu