
YUZHNO-SAKHALINSK, Russia -- Russia's Far East region is home to winter temperatures that can reach minus 20 C, making high-quality windows that are resistant to extreme cold weather essential. In July, Sakhalin-based window manufacturer Karvi opened an office in the city of Sapporo, the capital of Japan's northernmost island of Hokkaido, with the aim to sell its airtight, high-performance thermal insulation windows in the Japanese market.
Karvi controls 70% of the window market in Sakhalin. The company uses German technology to achieve high-grade thermal insulation with multilayered window frame structures. The glass is made in Russia, but by Japanese makers.