Material: Is copper plating used? Generally, copper materials are heavier.
  
Valve core: The "heart" of a faucet, which determines its lifespan and water output. It is best to use a ceramic valve core.
  
Water outlet filter: Generally, the water outlet of a faucet has a rectifying mesh cover. A good faucet has a double-layer filter at the water outlet, which makes the water outlet soft and smooth, without splashing, and accompanied by bubbles, saving 30% water.
  
Surface treatment: The plating layer does not require special maintenance and can be maintained for a long time. A good plating layer has 3 layers and good static surface effect, ensuring that it will not fall off for life.