1. Umwenda utekereza ni ihame ryiza ryerekana ko amasaro yikirahuri ashyirwa kumyenda, kandi urumuri rwangiritse kandi rugaragarira mumasaro yikirahure hanyuma ukagaruka.Nubwo urumuri rwerekanwe ahanini rusubira mubyerekezo byurumuri rwerekezo rwumucyo winjira.
2. Ifite umwenda ukomeye.Nyuma yo kudoda ku zindi myenda na substrate, igira uruhare rugaragara mugutezimbere uwambaye nijoro cyangwa mubidukikije hamwe no kutabona neza.
3. Ifasha kongera ubwiza bwuwambaye mugihe cyijoro cyangwa urumuri ruto iyo rumurikirwa nisoko yumucyo, nkamatara, mugusubiza urumuri rugana kumasoko yambere kandi rukagera kumaso yumushoferi.Kwemeza neza kugaragara numutekano wibintu munsi yumucyo mubi cyangwa byihutirwa.
AH9500: Ibara ryijimye TC yerekana imyenda.
AS9500: Ibara rya silver TC yerekana imyenda.
AC505: Umukororombya ibara TC imyenda yerekana.