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.
The climate is most commonly found in Southeast Asia, Central Africa and South America. However, tropical microclimates are found in many other regions (e.g. far North Queensland), while not everywhere along the equatorial region features a tropical rainforest climate.escription [edit]. Tropical rainforests have a type of tropical climate in which there is no dry season â all months have an average precipitation value of at least 60 mm. Tropical rainforests have no summer or winter; it is typically hot and wet throughout the year and rainfall is both heavy and frequent.