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about ppg<br>pittsburgh-based ppg is a global supplier of paints, coatings, chemicals, optical products, specialty materials, glass and fiber glass. the company has more than 140 manufacturing facilities and equity affiliates and operates in more than 60 countries. sales in 2008 were $15.8 billion. ppg shares are traded on the new york stock exchange (symbol: ppg). for more information, visit www.ppg.com.<br><br>关于ppg： <br>ppg工业公司总部设在美国匹兹堡市，是全球性油漆、涂料、化学品、光学产品、特种材料、玻璃及玻璃纤维产品的供应商。pp。