Anyị factory nwere ike na-enye ọtụtụ dị iche iche akụkụ track akpụkpọ ụkwụ maka excavator na bulldozer, ogologo nwere 250mm, 300mm, 450mm, 500mm, 600mm wdg, na ọkpụrụkpụ nwere 6mm, 8mm, 10mm, 11mm, 12mm, 13mm, 14mm wdg, onye ọ bụla ibe. nke track efere anyị enyocha strickly mgbe anyị na-emepụta iji hụ na àgwà dị ukwuu, anyị factory nwere n'elu 20 afọ n'ichepụta ahụmahụ na nke a na-ewu ígwè ụlọ ọrụ, anyị meriri ntụkwasị obi nke ọtụtụ ndị ahịa na magburu onwe ngwaahịa àgwà, ya mere nwere a ọnụ ọgụgụ nke na-eguzosi ike n'ihe ahịa na-ogologo oge imekọ ihe ọnụ mmekọrịta n'ụlọ na ná mba ọzọ, anyị kwere na anyị ngwaahịa agaghị ekwe ka. ị daa.