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work for electrical contractor
1/2-inch EMT is a great low cost material for panel frame and sub-frame fabrication. I prefer oxyacetylene with a small tip, however, a wire-feed will certainly work.
Mounting ears can be attached wherever needed, including those for Dzus fasteners.
Also, 'stacked' metal, multi-level heat-shields, with dead-air voids spaced between sheets, can be attached between coroplast and heat sources to protect against thermal 'creep.'
Scrap, EMT cut-offs make great vertical spacer material.
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