Ukurikije uburyo butandukanye bwo gukora, burashobora kugabanywamo urushinge ruzunguruka no kumva urushinge;Ukurikije ibikoresho fatizo bitandukanye, birashobora kugabanywamo: ubwoko busanzwe (STD), ubwoko bwera (HP), ubwoko bwa aluminiyumu (HA), ubwoko bwa aluminium zirconium, ubwoko busanzwe ...
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