Copper
offers the ultimate in underground durability.
Archeological digs often recover items
made of pure copper in superb condition
after 8,000 years.
Stainless
steel is an alloy of iron, carbon, chromium,
and nickel. The stainless steel used
in Clark vaults is a premium grade alloy
with high chromium and nickel content.
The Gateway Arch in St. Louis is made
of the same high quality alloy used
to manufacture stainless Clark vaults.
Many common kitchen accessories are
available in stainless steel such as
cookware, flatware and sinks.
