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Hefei Tengchao Chemical Material Co.,Ltd


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N-Ethyl Pyrrolidone First Grade Special Used for Pharm
Polyvinyl Pyrrolidone USP Grade Used as Pharmaceutical Aid
N-Methyl Pyrrolidone 99.9%min Special Used for LCD Liquid Crystal Material
Mainly Used in Skin Disinfection and Equipment Sterilization for Surgery, Injection, Etc
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