Blue collar-plastic

Green collar-hardware

Yellow collar-quality assurance

Black collar-painting and painting

Pink collar painting assembly

As for other oranges and purples, they generally don't attract many people, so I don't understand them.

(The work clothes of management personnel such as materials clerks, assistants and foremen are light green, and the collar color of foremen is department color; The manager's work clothes are blue shirts.

Quality assurance: responsible for product quality, quality and other issues. This position requires a strong sense of responsibility, careful and clear-headed, belonging to low-level management.