Nezve Zvinoshamisa Zvigadzirwa zveKicheni: Zvishandiso Benjamin Thompson akachereketa pakutanga kwezana ramakore rechi19 kuti midziyo yemukicheni yaiwanzo gadzirwa nemhangura, nekuedza kwakasiyana siyana kwakaitwa kudzivirira kuti mhangura isapindire nechikafu (kunyanya zvine acidic zvirimo) patembiricha inoshandiswa pakubika, kusanganisira tinning, enamelling, uye varnishing. Akaona kuti iron yanga yashandiswa se […]