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>關于ppg： <br>ppg工業公司總部設在美國匹茲堡市，是全球性油漆、涂料、化學品、光學產品、特種材料、玻璃及玻璃纖維產品的供應商。pp。