User talk:Materialtech

September 2008
Welcome to Wikipedia. The recent edit you made to Charpy impact test has been reverted, as it appears to be unconstructive. Use the sandbox for testing; if you believe the edit was constructive, ensure that you provide an informative edit summary. You may also wish to read the introduction to editing. Thank you. Useight (talk) 23:49, 30 September 2008 (UTC)

Please refrain from making unconstructive edits to Wikipedia. Your edits appear to constitute vandalism and have been reverted. If you would like to experiment, please use the sandbox. Wizard191 (talk) 23:50, 30 September 2008 (UTC)