[Design, manufacture and sale of expansion joint devices. Survey and repair of bridges and structures, reinforcement method. Design and development of materials for civil engineering and construction. ] Notice 2014.4.3　 　Fukuoka Sales Office was opened. 2013.11.11 We exhibited at the 3rd Railway Technology Exhibition. Thank you for coming. 2013.11.5 We exhibited at Construction Technology Exhibition 2013 Kinki. Thank you for coming. Thanks to you, we received the "Judges' Special Award". 2013.6.7 We exhibited at EE Tohoku '13. Thank you for coming. 2013.1.22 Small thin layer cutting machine Flat 1 (One) has been NETIS certified. 2012.12.10 The　Tokyo head office has moved. 2012.10.15 Certified as "Made in Niigata Platinum Technology". 2012.4.21 Certified as "Made in Niigata Gold Technology". 2012.4.12 We have opened the Sapporo branch office. 2012.1.11 The Sendai Sales Office has moved. 2011.10.18 We　will exhibit at the 2nd Railway Technology Exhibition. Date: November 9-11 Venue: Makuhari Messe * Booth number G-02 2011.4.1 The Kyushu branch office has moved. 2010.3.23 in Japan Road joint Association of Home, "guidance of the telescopic device design" was published. 2010.1.8 "Ultra-small flat surface cutting machine" capable of thin layer cutting has been posted. 2009.6.26 Japan Road joint Association of Home has been opened. 2009.4.20 The head office and sales office have moved. privacy policy Copyright (c) 2005 Heat Rock Industry Co., LTD. All rights reserved