No documents are required. The import of remanufactured parts is permitted. No special labeling is required. According to the law the actual commercial price of the product should be shown on the invoice. In order to avoid high duties and taxes, however, few companies in Russia do this.
Local distributors recommend showing the lowest cost possible on the invoice.
Every time a product crosses the Russian border, taxes are applied, making it not commercially viable to reimport computers that were exported for repair. With the number of skilled computer professionals in Russia, it would be more cost effective to establish a service center in country.