1. Ngaba usebenzisa intloko yerivethi enkulu okanye umngxuma werivethi omkhulu? Kucetyiswa ukuba umngxuma werivethi ngokubanzi ube mkhulu kunobubanzi bomzimba werivethi nge-0.1-0.2mm, kwaye intloko yesibhamu kufuneka ifaniswe.
2. Umgangatho weerivethi ezingaboniyo kufuneka utshintshwe ngeerivethi ezintsha ezingaboniyo.
Ixesha lokuthumela: Julayi-14-2022