900×675 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

900x675 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

900×675 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

900×675 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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