Итак, в заключение хотелось бы сказ

Итак, в заключение хотелось бы сказать что все материалы, о которых я рассказал широко распространены и практически не имеют аналогов, учитывая их соотношение цены и качества.

Результаты (английский) 1:

So, in conclusion, I would like to say that all the materials I have told is widespread and virtually have no analogues, given their quality-price ratio.

Результаты (английский) 2:

So, in conclusion, I would say that all of the materials, which I told the widespread and practically have no analogues, because of their value for money.

Результаты (английский) 3:

And so, in conclusion, I would like to say that all the materials that I have described are widespread and have virtually no analogues, in view of their price and quality.