Logo of <a href="//commons.wikimedia.org/wiki/Category:Airgas" title="Category:Airgas">Airgas</a> following its acquisition by <a href="//commons.wikimedia.org/wiki/Category:Air_Liquide" title="Category:Air Liquide">Air Liquide</a>.
Airgas
<a rel="nofollow" class="external text" href="http://www.airgas.com/">Airgas official website</a>