1. Mugihe cyo kuyikoresha, umubiri wamahanga umaze kuboneka kugirango uhagarike ibyatsi, ugomba guhita uhagarikwa kugirango ugenzurwe, kandi umubiri wamahanga ugomba kuvanwaho mbere yo gukomeza gukoresha.Mugihe ukoresha, funga hose, nozzle hamwe nuhuza inkoni, cyane cyane icyuho gito ...
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