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Excerpt from A Plan for the Reform of the National Salt AdministrationThe cost of production is lower by sea water evap oration than by other methods. During the months of May and June, the weather being favourable and pro duction abundant, it costs only from 10 to 30 cents per picul. But both the fire and board evaporation processes increase the cost of production, which

Title : A Plan for the Reform of the National Salt Administration (Classic Reprint)
Author : Chang Chien
Language : en
Rating :
4.90 out of 5 stars
Type : PDF, ePub, Kindle
Uploaded : Apr 15, 2021
Book code : eb478

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