The process of changing the border line of the Akmola province of the Kazak Autonomous Republic (until 1925 - the Kyrgyz Republic) of the Autonomous Republic with the adjacent territory of the Omsk District of the Siberian Territory (until 1925 - the Omsk Province). consisting in the transition of the Cherlak District (Stepanovskaya. Dobrovolskaya. Cherlakskaya and part of the Bostand... https://www.ceomelinh.com/product-category/carbon-brush/