You forget. How do they make the glass? How about the wire frames? See, it goes a lot deeper that anybody thinks about. Kinda like to pull a naked and afraid on their lame asses. Drop ‘em nekkid in the middle of the Amazon and see how they embrace mother erf.
No, I didn’t forget. Just wanted to shorten the post a bit. The List would fill several pages of single-spaced copy. I Have already written about the uses for petroleum and derivatives in several blogposts. But thanks for calling that to the attention of the readers. Virtually no modern manufacturing could go forward without oil in some form. (Lived in the Oil Patch for years. Love the stuff! Smells like MONEY!)