Considering the cold weather in Russian, we find some solutions:
We choose Q345b as steel structure material. This material has higher yield strength and better low temperature impact toughness than Q235B. Q345b can be used normally at low temperature.
Low temperature grease is used in all transmission parts to ensure good lubricity in low temperature environment.
Electric motors and electrical appliances have added heaters to ensure the normal use of motors and electrical appliances after heating at extremely low temperatures.