A zinc coating, usually hot-dipped, in which the zinc and steel form a metallurgical bond. The thickness of a hot-dipped coating can be varied from a thin zinc/iron alloy layer to heavy applications suitable for extended outdoor exposure.
Humid subtropical climate. In Africa, the humid subtropical climates are found in two separate areas on the southern hemisphere of the continent. The Cwa climate is found over a large portion of the interior of the Middle and Eastern African regions.
Africa Weather. To describe weather conditions across the continent of Africa in specific terms is difficult in such a small space, so we'll opt for general terms. Most of Africa is in the tropics, and except for the peaks of mountains in the Great Rift Valley, it never freezes. The continent's northern half is primarily desert or arid, while its central and southern areas contain both savanna plains and very dense jungle (rainforest) regions. Africa is the hottest continent on earth; dry lands and deserts comprise 60% of the entire land surface.