During production inspection(DUPRO):

A DUPRO inspection is an on-site product inspection. A DUPRO inspection will identify whether or not your factory is following your original specifications correctly and if your production is still on schedule.
When 20% to 30% of the product is completed, inspect the semi-finished and finished products according to the orders, product descriptions and reference samples provided by the customer, so as to detect errors and deviations in a timely manner, and to ensure that the products continue to be produced in accordance with the customer’s quality standards. Mid-production inspection can help you confirm whether the quality, function, appearance and other elements of the product are consistent with your requirements throughout the production process, which is conducive to identifying and correcting problems as early as possible in order to achieve on-time delivery.