Vagadziri vakatengesa girazi faibha jira imhando ye inorganic nonmetallic zvinhu zvine mashandiro akanaka, akasiyana-siyana mabhenefiti akanaka insulation, yakasimba kupisa kupisa, yakanaka corrosion resistance, vagadziri vasina kurukwa vakatengesa, yakakwira mechini simba, asi kukanganisa...
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