Impilo yenkonzo yezinto zokwenziwa kwezingxabano (ama-peramic brake pads) kungenye imfuneko ebalulekile. Ngokuya ngohlobo lwezinto ezibonakalayo kanye nemibandela yokusebenzisa, izidingo zihlukile. For example, how many kilometers of mileage are required for car brake pads?