The world and the future which are connected by a line.

 Head Office
  TEL +81-79-296-3221
  FAX +81-79-292-0099
  URL Http://www.hdk-corp.com
  E-mail info@hdk-corp.com

  422 Nishi-Nobusue. Himeji. Hyogo. Japan
  ZIP 670-0971
Head Office
Hayakawa Densen Kogyo Co.,Ltd.
(HDK Network in Japan)
Head Office
Fukuoka Sales Office
1-19-27, Moroka, Hakata-ku Fukuoka-shi, Fukuoka, 812-0894, Japan
Fukuoka Sales office
Shiga Sales Office
405-1-1, Furutakacho, Moriyama-shi, Shiga, 524-0044, Japan
Shiga Sales Office
Nagoya Sales Office
77, Ogitacho, Kasugai-shi, Aichi, 486-0827, Japan
Nagoya Sales Office
Yokohama Sales Office
Harada Bld.2F, 2-8-6, Shinyokohama, Kohoku-ku Yokohama-shi, Kanagawa, 222-0033, Japan
Yokohama Sales Office
Utsunomiya Sales Office
AI Bld.4, 1785-39, Yanazemachi, Utsunomiya-shi, Tochigi, 321-0933, Japan
Utsunomiya Sales
Office