I believe you are trying to differentiate between the verbs 'to manufacture' and 'to fabricate'. Pay attention to the difference in spelling between a noun and a verb - in this case 'manufacturer' is a noun, which means 'a producer'. These two verbs are synonyms, however, 'to manufacture' means to make things, usually on a large scale, with tools or physical labor, whereas 'to fabricate' means to construct from prepared components. I hope this helps.