Kambani ipi yakavaka ngarava yeJapan yepasi pegungwa yeYu 12?
Context:Yu 12 aiva Imperial Japanese Army chokufambisa submarine pamusoro Yu 1 subclass pamusoro Yu I mhando. Yakavakwa kuti ishandiswe mumatanho okupedzisira eHondo Yenyika II, yakashanda mumvura yeJapan.  Kuvaka Mumakore maviri okupedzisira eHondo Yenyika II, Mauto eHumambo hweJapan akavaka ngarava dzepasi pemvura dzinotakura vanhu <unk> dzainzi Type 3 submergence transport vehicle uye dzaizivikanwa kuMauto eJapan saMaru Yu <unk> dzaizoshandiswa kutakura zvinhu zvaiva pazvitsuwa zvaiva muPacific. Ngarava dzepasi pemvura dzeYu I chete ndidzo dzakapedzwa uye dzakaona basa. The Yu I mhando yakabereka mune subclasses mana, mumwe nomumwe anobudiswa nomumwe mugadziri uye kusiyana zvikurukuru magadzirirwo avo conning shongwe uye mashoko pfuti yavo zvombo. Hapana imwe yaitakura torpedo kana kuti yaiva nemapombi e torpedo. Yu 12 yakanga iri yuniti yeYu 1 subclass.  Hitachi Kasado Works (Hitachi Kasado Seisakujo) paKudamatsu, Japan, yakavaka Yu 12. Zvinyorwa zvehuwandu hwekuvakwa kweYu 12 hazvina kuwanikwa, asi yapfuura yeYu I-type submarines yakaiswa pasi uye yakatangwa mukati mehafu yekupedzisira ya1943 uye yakapinda mubasa pakupera kwa1943 kana kutanga kwa1944.
Kambani yakavaka ngarava yeJapan yepasi pegungwa yeYu 12 yaiva Hitachi Kasado Works.