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 products ( product_name VARCHAR, product_type_code VARCHAR, product_price VARCHAR )

### Question ###
Find the name of the most expensive hardware product.

### Accurate SQL ###

SELECT product_name FROM products WHERE product_type_code = 'Hardware' ORDER BY product_price DESC LIMIT 1