19 December 2011
- 17:1817:18, 19 December 2011 diff hist +41 N Appropedia talk:Rigor how to weld cast iron
- 11:0111:01, 19 December 2011 diff hist −2,433 Oaxaca Water Quality Forum tig welding electrode
16 December 2011
- 19:2419:24, 16 December 2011 diff hist +30 N Talk:Seed balls welding electrodes current
15 December 2011
- 10:5610:56, 15 December 2011 diff hist +30 N Talk:Innovative Sheltering 1 - Bamboo and Ferro-cement for emergency shelter welding electrodes