User talk:Ob032014

December 2018
Hello, I'm Materialscientist. I wanted to let you know that one or more of your recent contributions to Maintenance engineering have been undone because they did not appear constructive. If you would like to experiment, please use the sandbox. If you have any questions, you can ask for assistance at the Help Desk. Materialscientist (talk) 12:45, 4 December 2018 (UTC)

Recent edit to Scrap
Hello, and welcome to Wikipedia. I noticed that you made a change to an article, Scrap, but you didn't provide a reliable source. It's been removed for now, but if you'd like to include a citation and re-add it, please do so! If you need guidance on referencing, please see the referencing for beginners tutorial, or if you think I made a mistake, you can leave me a message on my talk page. Thank you! Materialscientist (talk) 12:59, 4 December 2018 (UTC)