Yenziwe ngentsimbi eshayinayoIimbonakalo:
1. Gqibezela iinkcukacha kunye nezinto ezahlukeneyo;2. Ukuchaneka okuphezulu kwe-dimensional, ukuya kuthi ga ku-± 0.1mm;3. Umgangatho olungileyo womphezulu, ukuqaqamba okulungileyo;4. Ukuxhathisa okuqinileyo kwe-corrosion, ukomelela okuphezulu kunye namandla okudinwa;5. Ukubunjwa kweekhemikhali ezizinzile, insimbi ecocekileyo, umxholo ophantsi wokubandakanywa;6. Ukupakishwa okulungileyo, ixabiso elifanelekileyo;7. Ingenziwa ngaphandle kokulinganisa.