Lean production is also called excellent production, in which "fine" means excellent, accurate and fine; "Profit" means profit, benefit and so on. Lean production means timely manufacturing, troubleshooting, eliminating all waste, and moving towards zero defects and zero inventory.
Lean production, also referred to as "lean" for short, is a production mode to eliminate waste and uninterrupted workflow, rather than batch processing and queuing. Lean production is a management philosophy derived from Toyota production mode.
Its concept in quality management is: high quality in the whole process, doing it right once. It can also be called zero defect. This should be what you call lean quality.