TTC MUHANGA: Isoko ryo kudoda no kugemura impuzankano, iryo kugemura ibiribwa bitabora n’iry’ibibora, iry’ibikoresho byo mu gikoni n’iby’isuku by’abanyeshuri mu gihembwe cya 1 na 2, isoko ryo kugemura inkwi n’iryo gukora ibitanda bikoze mu byuma