Copper alloy containing up to 4% lead by weight is permitted.
Other types of copper alloys are also being considered for research and development in aquaculture operations.
Numerous copper alloys exist, many with important historical and contemporary uses.
The lanterns are made of copper alloys, glass, and cast iron.
Manufacturers learned to sandwich a copper alloy into vault doors.
Studying the resistance to oxidation in copper alloys is very important.
The metal was a copper alloy, hand-worked and very delicate.
Many complicated factors influence the environmental performance of copper alloys in aquaculture operations.
The sculpture was likely cast in multiple sections of bronze, a copper alloy.
It is also used when welding with copper alloys.
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