Icyuma gisobekeranye ni igice cyicyuma cyashyizweho kashe, gihimbwa, cyangwa cyakubiswe kugirango habeho ishusho yimyobo, ibibanza, nuburyo butandukanye bwiza. Ubwoko butandukanye bw'ibyuma bikoreshwa muburyo bwo gutobora ibyuma, birimo ibyuma, aluminium, ibyuma bitagira umwanda, umuringa, na titanium. Thoug ...
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