1. Ngwa nke rivet nut A makwaara dị ka kpuru ìsì rivet nuts, dọpụta okpu, na-eji na fastening ubi nke dị iche iche metal Ibé akwụkwọ, ọkpọkọ na ndị ọzọ na-emepụta ụlọ ọrụ.A na-eji ha eme ihe n'ụgbọala, ụgbọ elu, ụgbọ okporo ígwè, refrigeration, elevators, switches, ngwá ọrụ, ngwá ụlọ, ihe ndozi ...
GỤKWUO