Incazelo Ngamakhoyili akhandiwe, insimbi yeshidi icwiliswa kubhavu we-zinc oncibilikisiwe ukwenza ishidi le-zinc eligcotshwe ebusweni balo.Ikhiqizwa ikakhulukazi inqubo eqhubekayo yokufaka ama-galvanizing, okungukuthi, ipuleti lensimbi eligoqiwe licwiliswa ngokuqhubekayo ethangini lokucwenga eline-zinc elincibilikisiwe ukwenza ipuleti lensimbi elinamandla;ipuleti lensimbi elihlanganisiwe.Lolu hlobo lwepuleti lensimbi luphinde lwenziwe ngendlela yokucwilisa eshisayo, kodwa ngokushesha ngemva kokuphuma ethangini, lushiselwa cishe ku-500 ℃ ukuze lwenze...