I-speculum ephinda isetyenziswe enetyhubhu yokufuduka komsi sisixhobo sezonyango esisetyenziswa ngexesha lotyando ukuze sibone ngokucacileyo indawo yotyando ngelixa sisusa umsi kunye nenkunkuma edalwe ngexesha lenkqubo.
Ityhubhu yokuFukula umsi ye-SJR TCK-90×34 ine-insulation coating.
Ukususela oko yasekwa, umzi-mveliso wethu ubuphuhlisa iimveliso ezikumgangatho ophezulu ngokunamathela kumgaqo
yomgangatho kuqala. Iimveliso zethu zifumene udumo oluhle kakhulu kushishino kwaye zithembekile kakhulu phakathi kwabathengi abatsha nabadala.