mass-produced product; mass-market article
Refers to goods manufactured in large quantities, often contrasted with custom-made or limited-edition items.
This factory produces mass-produced goods at low cost.
There is a handmade quality that mass-produced products lack.
Custom-made or specially ordered item, the opposite of a mass-produced product.
量産品 refers to mass-produced goods made by machines in bulk, the opposite of ハンドメイド items crafted individually by hand.
Compound of 量産 (mass production) and 品 (product, article).