November 2010 change
Welcome to Wikipedia. Everyone is welcome to make useful changes to Wikipedia. However, at least one of your changes, such as the one you made to "Polyvinyl chloride", did not appear to be useful and has been automatically reverted by ChenzwBot. If you want to try out changing Wikipedia to learn more about how it works, please use the sandbox. Thank you.
Bad warning? Please report it here then remove this warning. --ChenzwBot (talk ▪ changes) 05:20, 11 November 2010 (UTC)
Your new changes to Polyvinyl chloride are vandalism and are not acceptable on any Wikipedia. Please stop. If you continue vandalizing, you will be blocked from changing Wikipedia. Kansan (talk) 05:26, 11 November 2010 (UTC)
 | This is the discussion page for a person who has not created an account yet, or who does not use it. We have to use the numerical IP address to identify them. An IP address can be shared by many people. If you feel that things said here are not about you, you can create an account or log in to stop it happening again. |