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.
According to the Merriam- Webster Dictionary, Inventory is defined as, the quantity of goods or materials on hand. Inventory is also known as an itemized list of goods or valuables, with their estimated worth; specifically, the annual account of stock taken in any business by the online Dictionary.Com.