1. Gịnị bụ igwe igwe igwe? Gịnị bụ ụgbọ elu? 1. Igwe igwe na-egwe ọka bụ ngwá ọrụ igwe nke na-eji onye na-egwe ọka na-egwe ọka workpieces. Ọ nwere ike ọ bụghị naanị igwe igwe ụgbọ elu, grooves, ezé gia, eri na ogwe splined, kamakwa ọ na-ahazi profaịlụ dị mgbagwoju anya, a na-ejikwa ya na igwe nrụpụta ...
GỤKWUO