... -12 working days after drawing approvedSpecificationsWe one of the biggest manufacturer and very famous in China. 1.material (PET,PE, PC ... ,such as membrane switch and touch screen with FPC, PCB ,silicone rubber ,metal backer ,plastic bezel and so on. 6. We ... ~200Hz,Mil-SLD-202,M204.Condition B)ISO9001 OEM Membrane Keypad