ANO sells a lot of faucets. One issue that frequently arises is the water supply valve under the sink where you connect the faucet to the water supply does not function properly. These valves are rarely closed so they can “freeze” up and not shut off the water when you want to install a faucet.
The valves are not as difficult to replace as it might appear. There are a number of videos on YouTube on how to replace these valves but here is one that I thought was particularly easy to understand.