"Large factories" refers to industrial facilities that are very big in size and typically house machinery and equipment for producing goods on a large scale. Full definition
The industry has hundreds of large factories in the region, with products of tapioca starch and derivatives including sweeteners, modified starches, and, more recently, fuel ethanol. (cstwastewater.com)
Competition is important for the market to work; so it must be large enough to support a number of large factories competing with one another. (religion-online.org)
Our smaller farms are being bought out by large firms & are converted to large factory farms who are solely interested in production & profit. (ultimatelifeproducts.ca)