... China. 1.material (PE, PC) 2.Adhesive 3M 3 Kingbright LED A. Material : Rohs compliant material ,for example , ... material we used are Rohns compliant 3.Our engineer will work with customers and reommend specail constrution design ... of assembly,such as membrane switch and touch screen with FPC, PCB ,silicone rubber ,metal backer ,plastic ... M204.Condition B) OEM Membrane Keyboard with Kingbright LED