"Winding optical fiber for drones in a Chinese factory. This factory shipped 1,200 coils to Russia last month. The winding time of a coil 10 kilometers long is 50 minutes. Orders from the Russian Federation are coming, so the factory added more machines."

"Winding optical fiber for drones in a Chinese factory. This factory shipped 1,200 coils to Russia last month. The winding time of a coil 10 kilometers long is 50 minutes. Orders from the Russian Federation are coming, so the factory added more machines."