Ntupu waya nke emechara welded na-enye elu dị larịị na nke edo, usoro siri ike, iguzosi ike n'ezi ihe.Ngwunye waya welded bụ ihe kachasị mma na-egbochi corrosion nguzogide n'etiti ngwaahịa nchara nchara niile, ọ bụkwa eriri waya kachasị mma n'ihi ngwa ngwa ya na mpaghara dị iche iche.Ntupu waya welded nwere ike ịbụ galvanized, mkpuchi PVC, ma ọ bụ igwe anaghị agba nchara welded waya ntupu.