Ndị e gwuliri elu bụ mgbakwunye zuru oke iji gosipụta igwe gị na ike nke ịkpụ site na iji ike ịkpụ site na ihe ndị siri ike. O nwere ike nyefee hydraulic ike na otu isi na ikikere ezé maka arụmọrụ kachasị dị mfe ma rụkwaa oge ọrụ na ụgwọ mmanụ iji nwekwuo uru. Crafts ripper na-ejikwa ezé Dumoy ezé na-eyi uwe ma na-eyi shroud iji mee ka ndụ anyị sie ike ma gbasaa ndụ ya.