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About LinkBacksWooden hulled PT boats had 6.6 tons of Cu, Zn, Pb? Hard to believe. That's a significant fraction of PT-20's 40 gross register tons.
https://en.wikipedia.org/wiki/Patrol_torpedo_boat_PT-20
Wooden hulled PT boats had 6.6 tons of Cu, Zn, Pb? Hard to believe. That's a significant fraction of PT-20's 40 gross register tons.
https://en.wikipedia.org/wiki/Patrol_torpedo_boat_PT-20
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Regards, Marv
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