Ko te raina whakaputa te tango i te extruder wiri kotahi, tae atu ki te extruder me te whangai aunoa.E toru-wahanga te hanga o te wiri.Ko te hiku me te oko he mea hanga ki te 38CrMoAl, ka orohia te mata me te Nitrided.Ko te taputapu taputapu o te whakaheke ko te 20CrMnTi, he carburized ka tineia.Ko te taputapu whakamahana o te extruder ka whakamahanahia e te mowhiti whakamahana uku me te whakakakahu ki te powhiriwhiri.
Ko nga mea o te pokepoke he 40Cr te hanga, Ka tineihia me te whakama, ka whakakikoruatia te hongere rere o roto ki te chromium pakeke me te orohia.Ko te taha o waho ka maputia ki te peita teitei o te pāmahana.Kei a ia nga painga o te tino tika me te roa o te ratonga.
Ka paiherea te tank ki te 304 kowiri tira, he roa, he kore ngawari ki te waikura.
Ko te tarakihana he taputapu tatau mita aunoa, a he pumau te tere o te tarai.
Kaihuri teihana rua, ka taea te whakarite i te tere awhiowhio kia rite ki te tere o te tarakihana.