Ngwaahịa

Nnukwu tube nchara square nwere akụkụ oghere dị arọ, mgbada siri ike na arụ ọrụ torsional, yana nhazi nhazi maka nnukwu ogidi nhazi na ibé.

Oyi-kpụrụ square ígwè tube na a mgbe oghere ngalaba, edo mgbidi ọkpụrụkpụ, mfe imepụta, na oru oma ike-ibu arụmọrụ maka owuwu na okpokolo agba.