 Anyị isi ọnwụ na echiche nke Quality mbụ, ugwu mkpa, a zụrụ nke ọma na raara onwe ya nye otu gụnyere injinia, technicians ndị ọzọ ọrụ, a na-enye ohere ka anyị na-enye ndị ahịa quality ngwaahịa, asọmpi price na ozugbo nnyefe oge. 