Mu nganda zinganda, gukoresha umwuka wafunzwe ni ngombwa muburyo butandukanye bwo gukoresha, uhereye ku bikoresho bya pneumatike kugeza kumashini ikora. Ariko, kuba hari ubuhehere mu kirere cyugarije bishobora gutera ibibazo byinshi, birimo kwangirika, kwanduza, ...
Soma byinshi