Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_23303 ( "English Name" text, "Chinese Name (Simplified / Traditional)" text, "Pinyin" text, "Population" real, "Post Code" real )

### Question ###
What's the post code of the county with the Chinese name / ?

### Accurate SQL ###

SELECT MIN("Post Code") FROM table_23303 WHERE "Chinese Name (Simplified / Traditional)" = '潜山县 / 潛山縣'