Can the factory do it?

Objectively speaking, the factory director has the right to do so, but it is only a question of whether the specific measures are appropriate or not. Because the factory director is the head of the factory, he has the greatest responsibility for the management of the factory and correspondingly has the greatest rights. He can ask employees not to wear long hair and jewelry for the needs of factory production management, safety management and image management, and has the right to formulate treatment measures for violations. But the key point here is that if the factory director carefully analyzes whether it is reasonable to ask employees not to wear long hair and jewelry (including plastic earrings), and puts these related specific reward and punishment measures into the system documents, and ensures that the punishment scale is reasonable, then the implementation will be fully based and more convincing.