User talk:190.103.181.181

Welcome!
Hello and welcome to Wikipedia. We appreciate encyclopedic contributions, but some of your recent contributions, such as your edit to the page Differential (mechanical device), seem to be advertising or for promotional purposes. Wikipedia does not allow advertising. For more information on this, please see: If you still have questions, there is a new contributors' help page, or you can. You may also find the following pages useful for a general introduction to Wikipedia: I hope you enjoy editing Wikipedia! Please sign your name on talk pages using four tildes ( ~ ); this will automatically produce your name and the date. Feel free to write a note on the bottom of my talk page if you want to get in touch with me. Again, welcome! ~ ToBeFree (talk) 17:17, 16 September 2019 (UTC)
 * Policy on neutral point of view
 * Guideline on spam
 * Guideline on external links
 * Guideline on conflict of interest
 * FAQ for Organizations
 * The five pillars of Wikipedia
 * How to edit a page and how to develop articles
 * Help pages
 * Tutorial
 * Article wizard for creating new articles
 * Simplified Manual of Style