Their main function is to transfer heat between two or more fluids to regulate temperature, enhance energy efficiency, and provide safety to industrial equipment. This....
https://swastikhydraulic.wordpress.com/2024/06/13/everything-you-should-know-about-heat-exchanger-in-2024/

The profitability of PET (polyethylene terephthalate) bottle manufacturing depends on several factors, including market demand, and production costs. Here are key considerations to determine if....
https://businesknowledge.quora.com/Is-PET-bottle-manufacturing-profitable