1. Iron material
Iron angle valves are cheap, easy to rust, easy to wear ceramic pieces, and cause blockage of water pipes. Therefore, when purchasing angle valves, try not to choose iron angle valves, but some merchants will use iron angle valves to pretend to be copper angle valves. , when we distinguish, we can see whether the surface is rough, whether there are granular protrusions, if there are, it means that it is an iron angle valve.
2. Alloy material
Angle valves made of alloy are slightly more expensive than iron. This alloy angle valve is not easy to rust. The water inlet of zinc alloy angle valve will automatically oxidize after entering the pipeline. Down. In addition, looking in from the water inlet along the light, there are small dots on the wall.
3. Copper material
The copper angle valve can be said to be such a better angle valve. It is not easy to oxidize, not easy to rust, and has a long service life, but the price is relatively expensive. This kind of copper angle valve is yellow or yellow when viewed from the water inlet along the light. Yellowish white, very smooth inside.
