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.
Process in which a zinc film is deposited on goods made of steel to provide long term (generally 10 to 30 years) corrosion protection and abrasion resistance. Two common galvanizing processes are (1) Hot metal bath: about 250 years old but still popular method in which the item is immersed in molten zinc to deposit a 50 to 150 micron thick film. (2) Electro-deposition: more recent method in which a 5 to 30 micron thick film of zinc is deposited electrochemically.