door hinge key shopping points

1. The materials should be corrosion-resistant and of solid quality. The appearance is flat and the surface is properly treated.When purchasing hinge, it is necessary to choose according to the environment and material characteristics.

   2.  The bearing diameter is large and the wall plate has thickness. Close and listen to the sound of the spring, try loosening the hinge cup. The sound of the hinge closing needs to be clear and crisp, and the indentation of the hinge cup closing is not obvious.

   3.Test screws. Use a screwdriver to adjust the screw three to four times with a bit of force, then remove the screw and check if the teeth of the hinge arm are damaged.