The 6S theory of the production management system includes: Seiri (Sort), Seiton (Set in order), Seiso (Shine), Seiketsu (Standardize), Shitsuke (Sustain), and Safety. The 6S theory of the production management system primarily requires employees to meet standards at both behavioral and cognitive levels, ensuring efficient management of the production site. The results of on-site management continuously validate the scientific basis of the 6S theory, thereby enabling ongoing optimization of the production management system.

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