report

 discuss the key points of the selection of materials and optimization of pipes for the distribution of natural gas.   

Use the list of questions (in questions and figures file) as a guide. All questions should be answered in the report.
Also address (1) optimization of extrusion, (2) detection of oxidation (3) tolerance control - for each of these there is a slide in the notes. 

report is 4 pages maximum (not include appendix)

calculations in the appendix