According to the World Bank, at the end of 2016 which nations were considered the top importing nations?

According to the World Bank, the top importing nations at the end of 2016 were:

1. United States
2. China
3. Germany
4. Japan
5. United Kingdom
6. France
7. Netherlands
8. Hong Kong
9. South Korea
10. Italy

How do we refer to the physical limit of raw materials, equipment, and labor needed to produce a limited number of products?

The physical limit of raw materials, equipment, and labor needed to produce a limited number of products is referred to as the "production capacity" or "production limit."