Iron faucet is easy to rust and difficult to replace and disassemble, just like magnet suction. Generally, there are some small faucets with difficult surface treatment and rough appearance. There are few iron faucets with large cold and hot faucets, which is difficult to process. Iron faucets have been phased out. Zinc alloy faucet is harmful to human body. The shell is easy to corrode and fracture after being impacted by water, and the surface is white after grinding