The quality control
In the field of enterprises, quality control activities are mainly the internal production site management, which has nothing to do with whether there is a contract or not, and refers to the technical measures and management measures to achieve and maintain quality. Quality inspection belongs to quality control and is an important activity of quality control. Internationally, quality control objects can set "witness point" or "stop point" according to their different importance and supervision and control requirements. "Witness point" and "stop point" are both quality control points, and their operation procedures and supervision requirements are different due to their different importance or quality consequences.