Izvo zvigadzirwa zvekushandiswa zvinoshandiswa nekambani yedu zvese zvinotengwa kubva kune makuru uye anozivikanwa epamhepo masimbi emagetsi. tichava nekuongorora kwakasimba pane chimwe nechimwe chigadzirwa mukati mekugadzira, uye chidimbu chimwe nechimwe casing coupling kana chubhu coupling chengetedza chakabatana kugadzirisa zvinyorwa, tambo yekutarisa marekodhi, kukanganisa kukanganisa kuongorora zvinyorwa, phosphating uye zvinyorwa zvekutakura, kuti uzive kugona kweiyo maitiro ese, kuitira kuti ave nechokwadi chekuti chero chigadzirwa chinogona kusangana nezvinodiwa nevatengi