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#10 |
Rear Admiral
![]() Join Date: Mar 2005
Posts: 13,224
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The word 'exotherm' rang a bell.
Exothermic welding is actually quite common in use of electrical construction, espically in lightning protection systems and grounding systems. http://www.exothermicwelds.com/index...st&iCategory=3 Its presence in such a large structure does not supprise me one bit.
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