How to choose copper hinge
If you have been to a hardware market or hardware store, you will find that the price and quality of various hardware are uneven, including copper hinges. Therefore, it is very necessary for everyone to understand some necessary purchasing skills when choosing copper hinges.
The first step, look at the appearance
Although the appearance of the hinge looks similar, if you observe it carefully, you can see the quality of the hinge from the appearance. For example, some inferior copper hinges will look a little yellow or black in appearance, and the plating layer is relatively thin; while high-quality copper hinges are purple-red and have a good gloss.
The second step, look at the copper cup
Slowly close the hinge, and follow the same operation to close it several times in a row. If you feel that the hinge is closed smoothly and there is no obstruction, it means that the quality of the hinge is relatively good.
The third step, look at the bearing capacity
If the hinge has been installed, you can press it down hard to see if the hinge sinks seriously. If so, the hinge may appear asymmetrical during use.
The fourth step, look at durability
The durability test requires more professional tools to be tested, such as a fatigue tester to test its durability, and a salt spray tester to test its rust resistance.