1. Tukatuka:
Na te rerekee o nga momo hangahanga o nga putorino koranu, ka wehea ki roto ki te wera-whakatakahia (extrusion) mokowhiti me te matao unu (hurihia) Korekau e rua.Kua wehea te putorino matao (hurihia) ki te putorino porohita me te putorino ahua.
2. 15CrMo ngongo koranu Tukatuka Tirohanga:
a.kua hurihia (whakahekenga kore): ro und ngongo perforation → whakawera → e toru nga pukapuka hurihuri, hurihuri, tangohanga ranei → wehe → rahi (whakaiti ranei) → whakamatao → ngongo pire → whakatikatika → whakamātautau hydrostatic (whakamatautau ranei) → tohu → rokiroki.b.paipa maitai tuitui (whakatakahia) matao: ngongo porotaka → whakawera → whakawera → pikara → ūpoko hinu (parahi) → maha-paa matao kua tohia (whakatakahia) → whakamahana wera → whakatika pire paipa tika → whakamātautau hydrostatic (whakamatautau) → tohu → rokiroki.
Ko te putorino koranu 15CrMo tetahi ahua o te putorino rino kore, a he nui ake te mahi o te paipa o nga ngongo maitai, na te mea kei roto i te rino he Cr kei roto.Ka taea e ia te kawe i te pāmahana teitei, a he pai ake te waikura i era atu paipa paipa kore, no reira he whanui te ngongo koranu i roto i te hinu, matū, hiko hiko, kohua me etahi atu ahumahi.Painga Whakataetae · Ka taea e matou te whakarato paipa motuhake kia rite ki nga tono a nga kaihoko.· He kaihanga hoki matou, na reira ka taea e matou te whakarato i nga hua kia rite ki o hiahia tere.· Kei ta maatau kamupene te kaha hangarau me nga taputapu hanga matatau me te whakarite i nga taputapu whakamatautau me nga tikanga.
