ot eriri igwe spring-mara dị ka nnukwu mmiri, n'ihi na izugbe dayameta nke mmiri dị nnọọ ukwuu, ndị eriri igwe dayameta nke na-ekpo ọkụ eriri igwe spring esịmde 16-200mm, na mmepụta usoro jiri mere na-ekpo ọkụ eriri igwe technology.
