Stock control in the production must be observed by all parties. Because if any one of the blank material, the production will not work. If production can not run the time wastage will occur. Lean manufacturing certainly will not be achieved. Therefore, various ways have done to keep the remains there is no excess stock or less.
5S management role here is emphasized to ensure adequate supply to remain available. Effectiveness of stock is very helpful to reduce waste time and waste WIP is the basic component for building a lean manufacturing are well preserved