Ko tenei huinga taputapu wira noke i whakamahia ki te poti.Rauemi 34CrNiMo6 mo te kutukutu, maimoatanga wera: carburization 58-62HRC.Rauemi taputapu noke CuSn12Pb1 Tiini Parahi.Ko te taputapu wira noke, e mohiotia ana ko te taputapu noke, he momo punaha taputapu e whakamahia ana i roto i nga poti.He mea hanga mai i te noke porotakaroa (e mohiotia ana ko te tiwiri) me te wira noke, he taputapu porotakaroa me nga niho i tapahia ki te tauira helical.Ka hono te taputapu noke ki te kutukutu, ka hanga he maeneene me te marie te tuku hiko mai i te pou whakauru ki te pou whakaputa.

I roto i nga poti, ka whakamahia nga taputapu wira noke hei whakaiti i te tere o te rakau poroporoaki.Ka whakaitihia e te taputapu noke te tere o te urunga whakauru, e hono ana ki te miihini, me te whakawhiti i taua mana