Manufacture of tie for railroad and its regenerating method

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    JP-2013011104-AJanuary 17, 2013Sekisui Chem Co Ltd, 積水化学工業株式会社Crosstie and method of manufacturing the same
    US-4990668-AFebruary 05, 1991E. I. Du Pont De Nemours And CompanyOptically active aryloxypropanolamines and arylethanolamines