Na mgbakwunye na mmepụta, n'ụzọ ziri ezi ojiji nke bearings na nchekwa, echichi, overhaul, disassembly, mmezi, lubrication na akụkụ ndị ọzọ na-enyere aka ịgbatị ndụ nke bearings, ibelata mmepụta ihe na-emeziwanye mmepụta mmepụta.1. Nchekwa nke mbụ, a ga-echekwa ya na ...
GỤKWUO