... 1.material (PE) 2.3M 467 3 Kingbright LED 4.Berg Connector A. Material : Rohs compliant material ... are Rohns compliant 3.Our engineer will work with customers and reommend specail constrution design to ... of assembly,such as membrane switch and touch screen with FPC, PCB ,silicone rubber ,metal backer , ... ~200Hz,Mil-SLD-202,M204.Condition B) LED Membrane Switch Keyboard With Metal Dome and Berg Connector