Waya ntupu bụ aha nke ụdị waya na waya ntupu ngwaahịa niile, na-eji kemịkalụ eriri, silk, metal waya wdg, nke a na-emepụta site na ụfọdụ usoro ịkpa, bụ nke a na-eji maka "nyocha, nzacha, mbipụta, ike, nche, nchebe". N'ikwu ya n'ụzọ sara mbara, waya pụtara waya e ji ígwè mee, ma ọ bụ ihe ọla; A na-emepụta eriri waya site na waya dị ka akụrụngwa ma mee ka ọ bụrụ ọdịdị dị iche iche, njupụta na nkọwapụta dịka ihe dị iche iche na-achọ site na usoro ịkwa akwa. N'ikwu okwu nkenke, waya na-ezo aka na ihe waya, dị ka igwe anaghị agba nchara, waya dị larịị, waya galvanized, na waya cooper, waya PVC wdg; waya ntupu bụ mgbe miri-usoro guzobere ntupu ngwaahịa, dị ka window ihuenyo, gbasaa metal, perforated mpempe akwụkwọ, nsu , ebu ntupu eriri.