Some Basics About Flu and Colds. Each year, Americans get more than 1 billion colds, and between 5 and 20 percent. of Americans get the flu. The two diseases have some symptoms in common, and. both are caused by viruses. However, they are different conditions, and the flu is. more severe. Unlike the flu, colds generally don ât cause serious complications, such. as pneumonia, or lead to hospitalization.
Bonderized steel is actually Galvanized steel that has been put through a phosphate bath and has a layer of Chromate applied and dried. The process produces a dull gray colored finish which provides for a good primer in order to be painted.
Electroforming is a metal forming process that forms parts through electrodeposition on a model, known in the industry as a mandrel. Conductive mandrels are passivated to preclude 'plating' and thereby to allow subsequent separation of the finished electroform. Non-conductive mandrels require the deposition of a conductive layer prior to electrodeposition. Conductive layers can be deposited chemically, or using vacuum deposition techniques. The outer surface of the mandrel forms the inner surfac