kpọtụrụ anyị iji nweta nkọwa kacha mma
Onye na-ahụ maka teknụzụ ụlọ kachasị elu, na nhazi hexagon, clipping, rolling thread, carburize, zinc plated, igwe washer, ngwugwu na usoro ndị ọzọ, njikọ ọ bụla na-agba mbọ maka izu oke na nke kacha mma.
kpọtụrụ anyị