1, makiyidi athu a silikoni amalephera kuvala ndi kung'ambika, kuwonetsetsa kuti amakhalabe okhudzidwa komanso omvera kwa zaka zambiri.
2, Timagwiritsa ntchito njira zopangira zida zapamwamba kuti tiwonetsetse kuti ma keypad athu a silicone amakwaniritsa miyezo yapamwamba kwambiri komanso magwiridwe antchito.
3, ma keypads athu a silicone adapangidwa kuti azikhala osavuta kugwiritsa ntchito ndipo amafunikira mphamvu zochepa kuti ayambitse, kuwapanga kukhala chisankho chabwino pamapulogalamu omwe chitonthozo cha ogwiritsa ntchito chimakhala chofunikira.