 Na mgbakwunye na-a zuru akara nke ụzọ igwe ngwaahịa na igwe ọnwụ sọ, korota paver, okporo ụzọ ala, gụnyere trackpads, track yinye, track ala, ebu belt,-egwe ọka drum, ngwá ọrụ njide, họpụta mmadụ, screed efere, roba echekwa wdg 