The signs on both sides of the road as shown in the picture are referring to? Which one is it referring to?

The signs on both sides of the road as shown in the picture are referring to?
Which one is it referring to?undefined
Minimum speed 60 kilometers per hour
Maximum speed 60 kilometers per hour
Limiting to 60 kilometers per hour only when the weather is bad

The number on the red circle with black text indicates the maximum permitted speed on the road under clear weather conditions. Speeding is not allowed. This type of speed limit sign is typically placed on open roads or before entering residential areas, reminding drivers to reduce their speed.