... the electric equipment; good quantity & service; RoHS material; switch boardMembrane switches is a type of keypad, which can be ... and parts began early 1980.1)Items——membrane switch, keypad, membrane keypad, keyboard switch, switch panel, membrane panel, membrane overlay, membrane ... ,velvet,matte & coarse finish, semi-gloss with semi-laminate.4) Embossing——Dome above the circuit layer, it can be metal ...