This category contains sites related to the manufacture, distribution, and servicing of industrial equipment used in a variety of heat transfer processes. The objective is to heat or cool products as a part of a process application or manufacturing procedure. Examples include annealing, brazing, hardening, and tempering metal parts, as well as baking, drying, curing, and bonding materials and products in several different industries. Note: A quite considerable number of furnace type sites are also indexed in a category of their own, reflecting their application beyond the heat treatment one. Searchers and submitters are therefore advised to look at the Furnaces_Incinerators_Kilns category and well as this Thermal_Process one to determine where their interests are likely to be best served. Note: The accompanying Heat_Exchanger subcategory has its own description. In a sense, it deals with equipment designed to transfer heat from one medium to another.