In-line inspection can be also named as During production inspection. It is usually conducted when the products are 10-50% finished. An In-line inspection can help you know more
about the production and quality status. In-line inspection checks the goods based on the finished 10-50% quantity to find out the defective samples ,remove them and analyze the root cause in order
to avoid the same or similar defective samples come out at the following production stage. So It is necessary to have a in-line inspection conducted especially for a new item or a new factory.