Kawatetsu Tekuno Risāchi Kabushiki Kaisha

• Heisei 14-nendo zairyō, nanoteku kanren shisaku no gijutsu, sangyō, shakai e no inpakuto ni kansuru chōsa hōkokusho
• Shōkibo jigyō ni kakaru gijutsu hyōka shisutemu ni kansuru chōsa