Cooling plates for electric ore furnaces are produced from, possibly rectangular, flat blanks, with coolant channels drilled through them. Ends of pairs of adjacent channels are interconnected, and closed off by covers welded to the edges of the plates. Connecting cavities may be formed in the ...
A display device (1) includes a display panel (12), a front face housing (11), a flat optical member (14, an integral metal frame (13), and a rear face housing (17). The display panel is configured to display image. The front face housing (11) covers a peripheral edge of the di...