72×54 Figure 10. Light photomicrograph of the external surface of the pipe in Mount M1 (4% Nital Etchant, area indicated in Figure 8)., in Pilot Grove, MO PEPL explosion, by John S. Quarterman, for SpectraBusters.org, 25 August 2008

72x54 Figure 10. Light photomicrograph of the external surface of the pipe in Mount M1 (4% Nital Etchant, area indicated in Figure 8)., in Pilot Grove, MO PEPL explosion, by John S. Quarterman, for SpectraBusters.org, 25 August 2008

72×54 Figure 10. Light photomicrograph of the external surface of the pipe in Mount M1 (4% Nital Etchant, area indicated in Figure 8)., 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

72×54 Figure 10. Light photomicrograph of the external surface of the pipe in Mount M1 (4% Nital Etchant, area indicated in Figure 8)., 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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