The Lining is Made from Materials Such As Pine, Linden, Cedar, Oak and from Many Others. We Will Focus On a Lining of Wood. It is Four Types: a, C, C and Extra. The Last Class of the Lining Is the Most Expensive that Corresponds to Its Quality. The Cheapest Lining is that in Terms of Quality Belongs to the Class with. Naturally, Not High Demands Are Pressented to it.