Süvahavva wool factory

At Süvahavva Wool Factory and Museum you can see how wool is spun into yarn and Villakalli Puut sells wool products and other local handicrafts on the spot. Museum will be open on Sunday, October 7th at 11-15. Guided tours to the factory at 11 ja 13 (cost 5€). 
How many work processes has to be done in Süvahavva wool factoryto get 2 fold yarn?
Answer like: "5"

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