Where is Cr-Cu alloy produced at most?

Beijing Ruichi produces high-purity Cr-Cu alloy Co., Ltd. According to Baidu map, Beijing Ruichi High-purity Cr-Cu alloy Co., Ltd. produces the most Cr-Cu alloy. Properties of Cr-Cu alloy Copper with copper content greater than 99.50% is also called red copper, red copper and red copper because of its red color. It often contains oxygen, sulfur, lead, arsenic, bismuth, phosphorus and so on.