<https://www.equipmentworld.com/equipment/article/14971145/atlas-copcos-high-pressure-boosters-for-air-compressors>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<http://mechanicalpartslist.com/atlas-copcos-high-pressure-boosters-for-air-compressors.html>