Mena he nui te rerenga i roto i te taika rokiroki hauota, na mo te aitua kua pa, me kaha ki te mahi.
Ko te rango o roto me te ngongo he mea hanga ki te kowiri tira austenitic. Ko te rango o waho he mea hanga ki te paparanga takawaenga Q235-B, he peara te whakakii me te hau.
