600×450 Figure 12. Light photomicrograph of the typical base metal microstructure from Mount M2 (4% Nital Etchant)., in Pilot Grove, MO PEPL explosion, by John S. Quarterman, for SpectraBusters.org, 25 August 2008

600x450 Figure 12. Light photomicrograph of the typical base metal microstructure from Mount M2 (4% Nital Etchant)., in Pilot Grove, MO PEPL explosion, by John S. Quarterman, for SpectraBusters.org, 25 August 2008

600×450 Figure 12. Light photomicrograph of the typical base metal microstructure from Mount M2 (4% Nital Etchant)., in Pilot Grove, MO PEPL explosion, by John S. Quarterman, for SpectraBusters.org, 25 August 2008,
http://www.phmsa.dot.gov/pv_obj_cache/pv_obj_id_11F40E719B390ECD8C40151143A379EF2BC52E00/filename/Panhandle_Eastern_GT_MO_508_2008-08-25.pdf

600×450 Figure 12. Light photomicrograph of the typical base metal microstructure from Mount M2 (4% Nital Etchant)., in Pilot Grove, MO PEPL explosion, by John S. Quarterman, for SpectraBusters.org, 25 August 2008,
http://www.phmsa.dot.gov/pv_obj_cache/pv_obj_id_11F40E719B390ECD8C40151143A379EF2BC52E00/filename/Panhandle_Eastern_GT_MO_508_2008-08-25.pdf

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