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.
Inventory is one of the factors that you can control to improve your small business profitability. The way you source and manage inventory can impact the different profit levels of your income statement. Ignorance of how to use inventory to your advantage prevents you from maximizing operational efficiency.