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.
An item master is a master record for a type of inventory item. The item master includes the item description, materials and handling specifications, sales and fulfillment specifications, and warehouse-specific information. An inventory item is a particular, physical quantity of an item master.