Gypsumu y'intoki ni iki? Gypsum hand plaster nibikoresho byubaka bikoreshwa murukuta rwimbere. Ni uruvange rwa gypsumu, igiteranyo, nibindi byongeweho, kandi bigakoreshwa nintoki nabakozi babahanga bakoresheje ibikoresho byamaboko. Ipompa irazunguruka hejuru yurukuta, ikora neza ...
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