Which is better, Jiugong Bagua brand copper or brass?

Copper is good. Red copper is a relatively pure copper. According to relevant data, 50% of copper is electrolyzed and purified into pure copper every year, which is used in electrical industry. Red copper is really pure, with a copper content of over 99.95%. A very small amount of impurities, especially phosphorus, arsenic and aluminum, will greatly reduce the conductivity of copper.