674×506 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

674x506 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

674×506 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

674×506 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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