1. Ishishini lokulungisa kufuneka kuqala lixhobise isibini ngasinye sokubumba kunye nekhadi lokuphinda liqalise, lichaza kunye nokubala ukusetyenziswa kwalo, ukunakekelwa (i-lubrication, ukucoca, ukuthintela i-rust) kunye nomonakalo, ngokungqinelana nokuba amacandelo kunye namacandelo anokonakala kunye neqondo lokunxiba kunye ukukrazula kukubonelela ngolwazi kwaye m...
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