== Deleating of my content and links == 

 Guy, I’m struggling to understand why you seem to have systematically removed all my references and any links to external information that i have posted on Wikipedia. The information i refer to is on the Powder Metallurgy page and 3D printing page - the external links I added provide completely free information and in no way can be seen as spam. If any one is interested in the technology then they will value the information provided on the linked sites.  

 As editor of the printed magazine 'Powder Metallurgy Review' and International Powder Metallurgy Directory website and enews service, i feel that i am somewhat qualified to make additions to the text on these pages and provide links to interesting a relevant free articles that appear on our site. 

 I notice you have not removed obvious 'commercial' links from some of these pages - why is this?   

 I look forward to your response and to understanding what you object to in my posts. 

 Paul