1, See the surface: pay attention to the surface luster, hand touch no burr, no pores, no oxidation spots. The smoother the surface, the better the quality;
2, Turn the handle: a good leader in the rotation of the handle, there is no excessive gap between the faucet and the switch, and close the open and easy without slip;
3, Listen to the sound: a good leader is the overall casting of copper, knocking sound boring; if the sound is very crisp, it must be stainless steel;
4, Mark: identify the product mark. Regular products generally have the manufacturer's brand identity, in order to identify and prevent counterfeiting;
5, Check the parts: a good valve body, handle all brand refined brass, heavier weight, a sense of dignified.