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NEW YORK ( TheStreet) -- Praxair (NYSE: PX) hit a new 52-week high Thursday as it is currently trading at $115.44, above its previous 52-week high of $115.32 with 524,126 shares traded as of 1:55 p.m. ET. Average volume has been 1.1 million shares over the past 30 days. Praxair has a market cap of $33.56 billion and is part of the basic materials sector and chemicals industry. Shares are up 6.4% year to date as of the close of trading on Wednesday. Praxair, Inc. engages in the production, distribution, and sale atmospheric and process gases, as well as surface coatings in North America, Europe, South America, and Asia. The company has a P/E ratio of 20.6, equal to the average chemicals industry P/E ratio and above the S&P 500 P/E ratio of 17.7.