Njikọ

Ọnụrụ ndoro nke self-drilling soil nail systems, couplings na-egosi na ndoro ndoro dị iche iche nke ọkpụrụ ndoro na-eme ka ndoro ndoro ndoro na-eto n'okpuru na n'ime ụlọ ọrịa na ụlọ ọrịa nke ọtụtụ ike na ọkụkụ. Ndoro ndoro ndoro ndoro ndoro ndoro ndoro ndoro ndoro ndoro ndoro ndoro ndoro ndoro ndoro ndoro ndoro ndoro ndoro