Migrating a Content Types and its Nodes into another site
migrate_d2d provides a framework based on the Migrate API for migrating content from Drupal 5, Drupal 6, or Drupal 7 sites into the Drupal 7 site where it is installed

https://www.drupal.org/project/migrate_d2d

Using this module you can easly migrate your content types to other d7 instance.
Here You Just need to give database link form which you want to migrating content types.