1. Main national standard copper materials, real materials;

2. The gravity casting process is adopted, and the wall thickness is uniformly thickened to prevent perforation and water leakage;

3. The surface has undergone three layers of electroplating process, passed the 24 H acid salt spray test, and reached the national standard level 10, lasting as new;

4. Spain Cassidy valve element is used. After more than 500000 service life tests, it is durable and can prevent water leakage. It is equipped with Nupo bubbler, which can gently water out, save water and prevent splashing