... delivery,100%QC 4.UL & CSA,ISO9001 membrane switch panels1OEM is available2.durable,waterproof ,scratch resistant3.prompt ... of keypad, which can be touched lightly. It integrates switch key, membrane panel, marker, symbol, display functions and plate, ... components and parts began early 1980.Itemmembrane switch, keypad, membrane keypad, keyboard switch, switch panel, membrane panel, membrane overlay, ...