Ikhoyili ekhandiwe, ukucwilisa ishidi lensimbi kubhavu we-zinc oncibilikisiwe ukuze linamathele eshidini le-zinc ebusweni balo.Njengamanje, inqubo eqhubekayo yokufaka ama-galvanizing isetshenziselwa ikakhulukazi ukukhiqiza, okungukuthi, ipuleti lensimbi libe umqulu wokucwiliswa okuqhubekayo ku-melti...
Funda kabanzi