Flashing (weatherproofing) bark was occasionally used as a flashing material. Most flashing materials today are metal, plastic, rubber, or impregnated paper. Metal flashing materials include lead, aluminium, copper, stainless steel, zinc alloy, other architectural metals or a metal with a coating such as galvanized steel, lead-coated copper, anodized aluminum, terne-coated copper, galvalume (aluminum-zinc alloy coated sheet steel), and metals similar to stone-coated metal roofing. Metal flashing should be provided with expansion joints on long runs to prevent deformation of the metal sheets due to expansion and contraction, and should not stain or be stained by adjacent materials or react chemically with them.
Rouge Steel it had agreed to purchase Severstal's Dearborn steel-making assets for $700 million cash. The acquisition would also include a coke-making facility and interests in three joint ventures that process flat-rolled steel products. Severstal also announced at that time that it would sell a separate steel-making facility in Columbus, Mississippi to Steel Dynamics for $1.63 billion. Severstal Dearborn produces flat-rolled products, including hot rolled band and hot rolled processed sheet, cold rolled sheet, hot dipped galvanized sheet, electro galvanized sheet, and aluminum coated boron and other advanced steels. Severstal Dearborn’s 68 in. hot strip mill has an annual throughput of 3.8