Efere a kpụrụ akpụ nwere njirimara magburu onwe ya nke mgbochi ọkụ, mkpuchi ọkụ na nchebe gburugburu ebe obibi, nke na-enye nhọrọ dị mma maka usoro mkpuchi nke ụlọ mmepụta ihe.
Ọnọdụ njikọ: a na-ejikọta panel na purlin site na skru onwe ya, akụkụ nke ọzọ bụ nkwonkwo ụkwụ.