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Official website of Hitachi Metals Techno, Ltd., the manufacture and sales of chain/sprocket, raised floor system and building constructional component
antiearthquake measures  beam-to-column connection  beam-to-column joint  conveyer chain  double floor  driven sprocket wheel  earthquake countermeasures  electric outlets on the floor  seismic countermeasure  under floor air supply  underfloor air supply 
www.hitachi-metals-techno.com - 2009-02-07
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