Soap Factory, the real deal!

I was wondering what soap factories look liked.  I was also curious on how soap was made on a larger scale.  I found a few videos about both.  Iti is not perfect because I haven't found much on video of soap factory.  It is a beginning.

Here is on how soap is made, on various scale:
https://www.youtube.com/watch?v=1baLzbathvI&spfreload=10
https://www.youtube.com/watch?v=Yj43ql6AWCU&index=777&list=WL (there some science explanation with the soap making)

A look in soap factories:
https://www.youtube.com/watch?v=nq34lZF6__0&index=777&list=WL
https://www.youtube.com/watch?v=cOx8vi9qyyc&index=809&list=WL
 (In French, the factory is in the middle of the clip.  It is about the Savon de Marseille)
Found a more recent abandonned soap factory.  Haven't seen the first part:
https://www.youtube.com/watch?v=Yj43ql6AWCU&index=777&list=WL

Olive soaps/Savon de Marseille:
https://www.youtube.com/watch?v=Yj43ql6AWCU&index=777&list=WL
https://www.youtube.com/watch?v=Yj43ql6AWCU&index=777&list=WL
https://www.youtube.com/watch?v=Yj43ql6AWCU&index=777&list=WL
https://www.youtube.com/watch?v=Yj43ql6AWCU&index=777&list=WL (description in French)
https://www.youtube.com/watch?v=nMuRZCuBcog&index=777&list=WL (history and the steps to make the Marseille's soap, in French)

Alep soap:
https://www.youtube.com/watch?v=BrcirSrRTI0&index=809&list=WL (in French)
https://www.youtube.com/watch?v=fR7sVXxCdUk&index=821&list=WL (how the soap is made, only visual)

 DYI laundry soap of Marseille.  It is recipes on using Savon de Marseille in the laundry:
https://www.youtube.com/watch?v=uk4wZ1sNjao&list=WL&index=817 (instruction in French but very visual)
https://www.youtube.com/watch?v=Yj43ql6AWCU&index=777&list=WL
https://www.youtube.com/watch?v=dJ9bKqJ1g3c&index=777&list=WL