1. Ihe dị iche iche
Ọdịiche ihe onwunwe bụ ihe dị mkpa dị n'etiti ntupu waya welded na nchara na-eme ka nchara sie ike.
Welded waya ntupu nhọrọ nke elu àgwà ala carbon ígwè waya ma ọ bụ galvanized waya, site akpaka nkenke na ezi n'ibu akụrụngwa ntụpọ ịgbado ọkụ akpụ, na mgbe ahụ oyi plating (electroplating), na-ekpo ọkụ plating, PVC plastic ntekwasa n'elu passivation, plasticization ọgwụgwọ.
Ntupu na-eme ka ọ dị ike bụ nke ígwè ígwè, dayameta waya dị ntakịrị, ịdị arọ dịkwa arọ karịa ụgbụ ịgbado ọkụ, n'ihi ya, a na-eji ya na-arụ ọrụ ụlọ dị elu.
2. Ojiji dị iche iche
The ojiji nke welded waya ntupu bụ dịtụ ọzọ sara mbara, ike ga-eji na azụmahịa, njem, ewu mgbidi netwọk, n'ala kpo oku netwọk, ịchọ mma, landscaping nchebe, ụlọ ọrụ guardrail, pipeline nkwurịta okwu, mmiri conservancy, ike osisi, dam ntọala, n'ọdụ ụgbọ mmiri, osimiri nche mgbidi, nkwakọba na ndị ọzọ na ụdị engineering ewu nke mesikwuru ihe Ọdịdị na net.
A na-eji ntupu na-agba ume maka àkwà mmiri, ụlọ, okporo ụzọ, ọwara, wdg.
