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Non-Tech : Kirk's Market Thoughts -- Ignore unavailable to you. Want to Upgrade?

To: Kirk © who wrote (5594)	3/6/2018 12:17:48 PM
From: robert b furman	3 Recommendations Recommended By Da Rookie Kirk © lightshipsailor Read Replies (2) \| Respond to of 26781

Might be an outlier but in 1972 I worked in GM's Saginaw Grey iron foundry (poured V-8 chevy 350 blocks). It's biggest furnaces were gas fired open hearth with electric arc furnaces used to keep the molten metal hot so it could be poured into the cope and drag molds. You could see the molten metal flow out of the big furnaces with ceramic troughs that flowed to the arc furnaces. GM poured so much iron that they had their own ship that went out into Lake michigan and sucked up sand from the bottom of the lake, Sand at the bottom of the lake had not been rounded out by the waves and made better mold cores when mixed with oil and baked before joining the cope and drag molds. I really enjoyed working in both foundries - it was dangerous and the workforce was very proud (unlike most other GM work forces). Bob