The hottest paper giant bet 1billion yuan on risin

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This paper giant "bet" 1billion yuan on the rise in pulp prices, causing changes in the industry

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durable sealing and cushioning performance and good chemical resistance

China paper is a large domestic paper trading market and paper portal, providing the latest information about the rise and rise of paper prices, paper, paper information, paper data, paper market, industrial water supply system, paper enterprises, paper center, paper headlines, paper data


price through appropriate heat treatment process (quenching and tempering, carburizing and quenching, etc.) to add its strength and wear resistance Sometimes, special steel is inlaid at the jaw, or steel sand is sprayed on the jaw surface


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