Copper Clad Steel Wire:

Copper clad steel wire (CCS) combines the high tensile strength of steel as its core and the conductivity properties of copper as its outer layer.
The core material is usually low carbon steel and is commonly used as grounding wire or the inner conductor of coaxial cables.
Copper clad steel wire can be produced bare or electroplated with gold, silver, tin, solder, and nickel. Enamel insulations are also an option.
Tinned Copper Wire:

Tinned copper wire is a type of uninsulated wire where a bare copper wire is coated with a layer of tin.
The tin coating provides corrosion resistance and excellent soldering and connectivity properties.

Tinned copper wire is commonly used for connecting electronic components on circuit boards, as test lead wire, and in jewelry making

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