300×225 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

300x225 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

300×225 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

300×225 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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