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![TRAINING SOURCE: CENTRAL WELDING SUPPLY, OCCUPATIONAL SAFETY DIVISION, [08/2013] Oxygen & Acetylene Safety Training.](https://static.cupdf.com/doc/330x215/55180aaf55034696438b4598/training-source-central-welding-supply-occupational-safety-division-wwwcentralweldingcom-082013-oxygen-acetylene-safety-training.jpg)
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March 29, 2015