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_name_19 ( no_built INTEGER, unit_nos VARCHAR )

### Question ###
How many number Builts had unit numbers of 375301-310?

### Accurate SQL ###

SELECT SUM(no_built) FROM table_name_19 WHERE unit_nos = "375301-310"