Good heat,wearability,ozone resistance,good sealed function; Interphone waterproof part Silicone rubber product molding keypad Silicone rubber ... product molding Waterproof part for interphone seal side keypadMaterials:NBR,SBR,CR,CM,EA,CSM, ... and specifications in customized;3 Widely used in mobile telephone, interphone,etc;4. With high quality;5. Customers`designs and ...