... are Rohns compliant 3.Our engineer will work with customers and reommend specail constrution design to meet ... proof ,dust proof and anti corrasion and so on 4. Strick quality inspection ,100 % funtional tesiting ,and ... of assembly,such as membrane switch and touch screen with FPC, PCB ,silicone rubber ,metal backer ,plastic ... -202,M204.Condition B) Elastomer Membrane Circuit with Silicon Rubber Part