ZhangjiakouChina |
TangshanChina |
4 345 491
(2010) |
4 345 491
(2010)
7 100 000
(2010) |
7 100 000
(2010) |
36 947 km2
|
36 947 km2
13 472 km2
|
13 472 km2
|
117.61
/km2 |
117.61/km2
527.02/km2
|
527.02
/km2 |