Inquiries by phone 044-333-2106 Reception hours Weekdays 9: 00-17: 00 Inquiries by email kouyou@asahi.email.ne.jp Top Company Profile Business information Owned machine Construction results Employment information 1 2 3 Four NEWS 2017.03.13 Kawasaki City bid participation qualification It was rated as civil engineering A rank. 2017.03.02 Construction license has been updated. 2017.02.02 I passed the civil engineering construction management engineer. Click here for a list Koyojuki Construction Co., Ltd. Company Profile Business information Owned machine Construction results Employment information Contact Us TEL: 044-333-2106 MAIL: kouyou@asahi.email.ne.jp © 2016 Koyojuki Construction. All rights reserved.