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 record. Manual or computer-based record of the quantity and kind of inventory (1) at hand, (2) committed (allocated) to firm-orders or to work-in-process, and (3) on order. It often also includes history of the recent transactions in each inventory item. Also called stock record.