sentences: making products for cheaper has a positive impact on manufacturing & a mass production manufacturing system makes products more cheaply than a custom manufacturing system -> a want nonproductive has a positve cat on hydroxide by wash model for cheaper a mass production has a positve impact on manufacturing by making products for cheaper  a mass production has a positve impact on manufacturing by making products for cheaper & cheap ph top in free -> a mass production has  a positive impact on manufacturing by making products at a low cost