... 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,ECO,NR/IR,VMQ,PMQ,PVMQ,Silicone ... short lead time and praise we created the miracle ; Silicone Rubber Waterproof and Side Keypad