Copper composite mapaneru akawana mukurumbira wakakura muindasitiri yekuvaka nekuda kwekusiyana kwavo nemoto kuramba, kusimba, uye kunaka kukwezva. Aya mapaneru, anoumbwa nemhangura alloy yekunze layer, mineral core, uye yemukati layer yealuminium kana galvanized simbi, inopa yakasarudzika ...
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