I-id yesakhiwo esikhethekile kulula ukuyisebenzisa uma kungelula ukwenza indawo yokusika ipayipi ibushelelezi kungabikho sikhala.Ngeke isetshenziselwe ukunqamula intambo nekhebula.Ukusika I-Dia Yangaphandle: 25MMUmumo uhambisana ne-ergonomics