Gustavo was born in Argentina, graduating as a Chemical Engineer. During his professional life, he worked as a construction manager and finally as president of a Construction and Installation company. In his work trajectory he built plants of Chemical Processes, Refineries, Gas Pipelines, Compressor Plants and Thermal Power Stations of the country and of the foreigner. As a result of this experience, the Author offers the Reader this eBook. The time consuming tables of this ebook have been used by the Author in his professional career.