亚洲区偷拍自拍29p

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        Product Characteristics

        Sodium hydroxide:

        Sodium hydroxide is a basic chemical raw material, widely used in chemical industry, metallurgy, paper making, petroleum, textile, daily chemical industryand other departments. Is the main raw material for manufacturing soap soap.In the oil refining industry for the acid residue removal of various oils after pickling, and oil odor, improved colour. The pulp and paper industry, can make the impurities dissolved pulp under high temperature and high pressure, to obtain the pure fiber for papermaking. Fiber for artificial fiber manufacturing.


        亚洲区偷拍自拍29p
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