Simba rakavharwa simbi purlin inogadzirwa nemarara purlins (C-chikamu simbi, Z-chikamu simbi) sechinhu chakadzika.Mushure mekudzvanya, kugadzira gomba, kucheka nekugadzira, epoxy resin poda inotangwa pakupisa kwepamusoro kuti inyurwe nekugadziridzwa, uye yozogadziriswa nekurapa ...
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