Reduce the list, select first 2 letters of the city:
Listing cities (130 place(s)). Select the City to see the postcode(s):
Listing cities (130 place(s)). Select the City to see the postcode(s):
Position: Postcodes > China > Shandong/山东 > Z.... >
Postcode finder: China, List of the cities starting with Z. China Shandong/山东 Postcodes (Desktop version).