_:n9d5797a1e87944c6bfc533e53eaeb1ffxb0
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.candlepowerforums.com/threads/my-nubm44-81-450nm-8-watt-laser-with-home-made-beam-expander-thors-hammer.439662/>