Uses denatured vinyl ester resin that does not make use of substances regulated by revisions (effective November 1, 2014) to the Industrial Safety and Health Act of Japan by the Ministry of Health, Labor and Welfare of Japan or the 13 volatile organic compounds (VOC) that can cause sick house syndrome. Produces no offensive styrene odor whatsoever during assembly. Can be quickly and easily assembled thanks to the anchor reinforcing bar embedding machine having been changed from a conventional hammer drill (rotation and strike assembly) to an electric drill (rotation assembly). Can be assembled underwater (using rotation and strike assembly as the assembly method).