Oil refineries insist hydrofluoric acid used safely, alternatives too expensive.
For more information, including a rebutal video, go to http://abcnews.go.com.
Oil refineries insist hydrofluoric acid used safely, alternatives too expensive.
Oil refineries insist hydrofluoric acid used safely, alternatives too expensive.
For more information, including a rebutal video, go to http://abcnews.go.com.