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Tokyo/Bunkyo-ku/2F Hayashi Tomo Building, 1-7-12 Kouraku
With over 100 years of achievements...
Instant deodorization is possible! ...
Ground improvement agents that enab...
Tokyo/Bunkyo-ku/6th floor, Sumitomo Seisen Koishikawa Building Annex, 3-5-9 Otsuka
We design and develop concrete prod...
Well blends with the surrounding la...
Significantly reduce formwork for o...
Cost reduction and shortened constr...
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General contractors and subcontractors
Bunkyo-ku/