A particular component

On the one hand, this procedure does not seem too difficult, but at the same time one specific question arises: why the cost of various window PVC profiles sometimes differs quite sharply. The answer is that the price of the final product is not least affected by certain additives that are part of a specific mixture. In total, about a dozen expensive additives can be distinguished. An ordinary buyer will not be able to determine the presence of a particular component by eye, so some manufacturers can sometimes cheat, unfairly filling the price.