... Panton and Ral color matching system ,using advanced light box and computer color mataching,we can also ... testing.5. We are qualified Dara switch .5. Except membrane switch and touch screen, we can also ... do different types of assembly,such as membrane switch and touch screen with FPC, PCB ,silicone ... ~200Hz,Mil-SLD-202,M204.Condition B) LED Membrane Switch Keyboard With Metal Dome and Berg Connector