Copper parts are often requested by material name alone. That is rarely enough for a useful quote. A conductive pin, grounding sleeve and sensor component can all be copper, but they may need different tolerance, finish and cleaning expectations.
Buyers should state whether the part carries current, transfers heat, locates another part or simply acts as a mechanical spacer. Plating, oxidation control and burr limits can change depending on the function.
Weeda Precision supports copper turned parts for electronics, sensors and industrial assemblies. A short application note helps separate electrical requirements from purely mechanical dimensions.