If you can't find actual cost prices you may use a estimation.
Take a look at this excel sheet in :
[link Point to another website Only the registered members can access]
or
[link Point to another website Only the registered members can access]
Here you have data on Vaporizer and Evaporator Data
There is also a book on cost estimation - posted some time ago.
Here it is:
[link Point to another website Only the registered members can access]
[link Point to another website Only the registered members can access]
Hope this could help you?
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