Refrigeration is the process of cooling a space, substance, or system to lower and/or maintain its temperature below the ambient one (while the removed heat is rejected at a higher temperature). In other words, refrigeration means artificial (human-made) cooling. https://en.wikipedia.org
What is TUV Germany German TÜV. … The acronym “TÜV” is associated for many Germans with the biennial general inspection of their vehicles. But the Technical Inspection Association tests much more than only cars. It all began in 1865 with the explosion of a boiler in the Mannheim Joint-Stock Brewery. Click here for more https://www.tuv.com/world/en/gs-mark.htmlinfo
