Signs and Symptoms of Psoriasis. Psoriasis is a common autoimmune skin disorder which occurs when the skin cells replicate too quickly. The skin produces new cells at many times the normal rate, creating inflamed, scaly and red patches of skin, called plaques, where the old skin has not shed quickly enough.
Galvanization is the process of applying a protective zinc coating to steel or iron, to prevent rusting. The most common method is hot-dip galvanizing, in which parts are submerged in a bath of molten zinc.
A street lamp in Singapore showing the characteristic spangle. Hot-dip galvanization is a form of galvanization. It is the process of coating iron and steel with zinc, which alloys with the surface of the base metal when immersing the metal in a bath of molten zinc at a temperature of around 840 Â°F (449 Â°C).