Cold environments of Russia’s North-West and Siberia produce one of the best timber in the world. Due to slow-growing conditions, Russian lumber counts twice more growth rings than lumber of the same dimensions available from other countries. Fine wood grains make lumber look good and testify that it is strong, durable, and lasts forever.
Russian leather is a particular form of bark-tanned cow leather. distinguishable from other types of leather by a processing step that takes place after tanning, birch oil is worked into the leather.
This produces leather that is hard-wearing, flexible, and resistant to water.
This leather was a major export product.