machinal vs manufacturing

machinal

adj
  • In the manner or style of a machine. 

  • Of, or pertaining to machines. 

manufacturing

adj
  • Used in manufacturing. 

noun
  • The transformation of raw materials into finished products, usually on a large scale. 

  • The industry in which such products are made. 

How often have the words machinal and manufacturing occurred in a corpus of books? (source: Google Ngram Viewer )