Every household must have a faucet, and the valve core, as an important part of the faucet, has an important impact on the service life of the faucet. Therefore, we need to be extra cautious in the purchase of faucet spool. So what are the precautions for the purchase of faucet spool? Now, let's have a look! 1、 Precautions for selection of faucet spool 1. When we choose the faucet spool, we ...