Ngā wāhanga ararewa Hitachi he kowiri tira nga ararewa hiko

Mō te whakaū i te hua, tēnā homai te waitohu o ngā taahiraa ararewa, te tauira, ngā pikitia o mua me muri, te whānui o ngā taahiraa, ngā rahi o te wira taahiraa; ka whakaratohia pea e ngā waitohu Hapanihi ngā koki o ngā ararewa (Hitachi, Thyssen, Mitsubishi, Sigma, Fuji, Hyundai)