Ingabe uke wahlangabezana nenkinga yomthamo owodwa wephakethe lebhethri elincane kakhulu?Ukuhluleka kwamandla ephakethe lebhethri noma ingozi efihliwe?Le modeli iphephile futhi inokwethenjelwa ngokuthi imisebenzi yayo eyinhloko engu-12 ukuvikela ngempumelelo ukuphepha kweseli njengokuvikela ukushajwa, ukuvikela ukukhishwa, ukuvikela phezu kwamanje, ukuvikelwa kwesekethe emfushane, njll.
Ngetheminali yomnyango we-copper tinned door(M5), iphephile futhi kulula kuwe ukuyixhuma namabhethri akho.Futhi inomsebenzi wokufunda wamandla, ongawusekela ukuze ufunde umthamo webhethri ngomjikelezo ophelele ukuze uqonde ukuncishiswa kweseli.