Aerial photo shows the field of cole flower in Gannan Tibetan Autonomous Prefecture in Gansu Province, northwest China.
Aerial photo shows the field of cole flower in Gannan Tibetan Autonomous Prefecture in Gansu Province, northwest China.
Aerial photo shows the field of cole flower in Gannan Tibetan Autonomous Prefecture in Gansu Province, northwest China.
Aerial photo shows the field of cole flower in Gannan Tibetan Autonomous Prefecture in Gansu Province, northwest China.
Tibetan papermaking has a long history and uses unique raw materials.