Ngaba ukhe wayiqaphela iphedi yerabha ekude, isixhobo sokubala, okanye ezinye izixhobo eziphathwa ngesandla?Wakha wazibuza ukuba zenziwe ngantoni okanye yintoni enokwenza olunye uhlobo lubengcono kunolunye?Ehlabathini le-keypads yerabha, i-silicone yinto eqhelekileyo.Kodwa kukho umahluko ophambili onokuchaphazela kakhulu amava omsebenzisi: nokuba ikhiphedi yerabha ye-silicone ine-polyurethane (PU) yokugquma.