Rubber and resin hose manufacturer Kuraray Plastics Co. Ltd. has had its Kuradrip brand of rainwater pipes adopted for use on construction points along tunnels of the Tokyo Gaikan Expressway. Kuradrip is a water-conducting pipe that prompts drainage through capillary action. It has been affixed in tunnels to control leakage in box culverts and box culvert body joints along tunnels....
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