Umenzi weLocker yeSikolo eTshayina: Indlela yokukhetha iFektri echanekileyo
Impendulo ekhawulezileyo: umenzi weelokhari zesikolo othembekileyo eTshayina ufanele aphumelele iimvavanyo ezine: imbali yefektri eqinisekisiweyo, intsimbi eqengqelekayo ebandayo kwi-0.4–1.0 mm, unyango olupheleleyo lomphezulu (i-phosphating +