toughen

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References in periodicals archive ?
Dow's new Paraloid BPM-520 toughens opaque injection molded PLA with minimal effect on HDT or stiffness, according to Dow.
Korea toughens rules on short selling as there has been a sharp rise in short selling activities amid continued unrest in the stock market triggered by the US subprime mortgage crisis, announced the Financial Services Commission (FSC) on September 24.
The Liquid Soul remix really toughens it up and is a real beast of a track, sure to completely destroy many a dance floor.