Njem ụlọ ọrụ

Bonnynwere ikike n'ichepụta usoro zuru oke nke nnukwu hydraulic excavators na grabbers, gụnyere ịzụ ahịa akụrụngwa, nhazi akụkụ, mgbakọ, nbipu ngwaahịa na ule, mkpuchi ngwaahịa na nnyefe.