Ojiji na ịsacha
Tupu ojiji mgbe niile itucha karama mmiri na okpu na mmiri dị jụụ.Mgbe ejiri ya mee ihe mgbe niile, na-asachapụ na mmiri ọkụ na ncha efere naanị.Ejila brushes ma ọ bụ abrasives na-ehicha ya.Ikuku kpọrọ nkụ nke ọma tupu ịchekwaa ma na-echekwa okpu mgbe niile.Jiri aka na-asachapụ ma ọ bụ saa efere dị jụụ.
Ekwensu na-anọkarị na nkọwa.
USSPACE na-elekọta nkọwa niile iji nyere gị aka inweta karama mmiri zuru oke.