In daily life, there are often some methods for adjusting the surface treatment of buckles. In order to improve the utilization rate of buckles, there are certain requirements for the corrosion resistance and wear resistance of the buckle surface. Therefore, it is very important to do a good job in surface treatment of adjusting buckles....

One side of the two parts connected to the shaft should be fixed to the door and window. When installing, please ensure that the hinges on the same fan are on the same vertical line to prevent doors and windows from bouncing. Turn off the sound of the spring and release the test cup....

In many hardware products, the design of the handle is variable. Although the handle is just a simple hardware accessory, special designs such as shape and decoration make consumers tend to purchase the handle....

Nowadays, military box hinges are no longer simply mechanical in nature, but also have a certain degree of decoration. Therefore, if the appearance and surface treatment are not up to standard, they will definitely not be popular with consumers. So how to improve the corrosion resistance of products and extend their service life is the key....

The hinge bears static load, while the upper hinge bears static load and bears torque. The composite hinge bears the actual load-bearing weight. After adding external suspension force, the vertical position of the free end of the door leaf and window sash does not change more than 1.5 mm. The specimen will not deform or be damaged and can be opened normally....