Autolite copper core spark plugs use a copper-glass seal that bonds the insulator and terminal post center electrode together.
Overproduction or overstocking leads to increased inventory and money sitting idle. Inventory means any goods that are being held for any length of time, inside or outside the factory. In the Lean system, inventory is regarded as a symptom of a sick factory.
Quality control is another manufacturing concept that has a correlation to production inventory. Quality control is a systematic approach to inspecting products at the raw-materials, work-in-progress and finished-product stages.ccounting for inventory in a manufacturing environment is often more complex than inventory accounting in other business setups. Manufacturers account for production inventory when valuating raw materials intended for production.