The Phosphorus copper alloy produced by our factory adopts advanced domestic technology. During the production process, high-temperature oxygen-free nitrogen protection and visual metering and other adv-anced technologies and methods are used. The level of alloy composition can be directly detected and effectively controlled. The phosphorus content is controlled at (8.5-10) %, and the first-time pass rate of the finished product is 100%. Since the product entered the market, it has received unanimous praise from users for its unique quality advantages.