 ot eriri igwe spring-mara dị ka nnukwu mmiri, nihi 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. 