The phrase "substandard product" means something that is below the expected quality or standard. It refers to something that is of lower quality compared to what it should be. Full definition
Right now they are overpriced paying for substandard product. (justarsenal.com)
The Director - General of the Standard Organisation of Nigeria, SON, Dr. Paul Angya, has explained how the unrestrained influx of substandard products into Nigeria contributed to the... (dailypost.ng)
By ensuring the safety and quality of a wide range of applications in the beverage industry, an Eagle x-ray inspection system can prevent harmful contaminants and substandard products from reaching consumers; protecting your brand's reputation and reducing the risk of costly product recalls. (eaglepi.com)