At which position of earth northern hemisphere has coldest day​

In the northern hemisphere, there are two places in the Sakha, Russia that vie for the honour of being considered the "Pole of Cold" in winter. These are Verkhoyansk (located at 67°33′N 133°23′E) and Oymyakon (located at 63°15′N 143°9′E)

answer; round wood logs, building materials like (plywood),also pulp and paper products;