Muri iki gihe isi yihuta cyane mu nganda, gukenera ibikoresho byizewe, bikora neza ni ngombwa kuruta mbere hose.Aha niho hagurishwa-bishyushye, byujuje ubuziranenge bwa plaque ebyiri.Iyi valve igezweho, izwi kandi nka reberi yo kugenzura icyuma cyangwa kugenzura wafer, ni desig ...
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