I don’t know what it is about copper and golf equipment but it’s definitely a thing. As far as pretty much anyone remembers, ...

oxygen free copper with silver and phosphorus, beryllium copper, copper chrome silicon nickel, chrome copper zirconium, chromium copper, naval brass, copper-aluminium bronze, copper nickel bronze ...

The dual entry card edge connectors feature high-strength beryllium copper compression contacts with a 1mm reduced pitch, resulting in a small-form-factor, vertical-edge connector. This unique design ...