Look at brightness
The surface chrome plating process of a good faucet is very particular, and it usually takes a few steps to complete. To distinguish the quality of the faucet depends on its brightness, the smoother the surface, the brighter the better the quality.
When the faucet is turned, there is no excessive gap between the faucet and the switch, and it is easy to open and not slip. Inferior faucets not only have large gaps, but also have a large sense of resistance.
Listen to the sound
The material of the faucet is the most difficult to distinguish. The good faucet is cast in one piece, and the sound is dull. If the sound is very brittle, it must be made of low-grade stainless steel. It contains more iron and the quality is worse than a grade.
If you really can't tell, you can choose a regular brand. Generally, regular products have the brand logo of the manufacturer, while some informal products or some quality products are often only pasted with some paper labels, or even without any marks. Be sure to pay attention when purchasing.