Cast Iron bar is used widely in a wide range of sectors such as the glass, automotive, machine tools and oil and gas industries. Typical applications include pistons, valve bodies, moulds, dies, cams, gears and pulleys.
YouTube TV is $35 a month. You can cancel at anytime. For $35 you get access to 40 channels including local ABC, CBS, FOX, and NBC streams, ESPN, regional sports networks and more. You also get unlimited DVR, a *free Chromecast, up to 6 individual accounts and access to YouTube Red. You can add Showtime and Fox Soccer Plus for an additional monthly charge. *The free Chromecast is only available while supplies last for the launch of YouTube TV. YouTube may stop offering it at anytime.
I've heard from other large YouTubers, in the gaming niche, that ~1,000,000 views/month is around minimum wage, so you can live off of it. From my own experience and from talking to other people I think it's more realistic to say that 500,000 views will bring you about $500. I agree that you shouldn't start YouTube with the goal of making money, because even with my numbers 1,000,000 views a month is not an easy task, and that's just minimum wage.