There are many ways to connect the container lock to the body. Some are welded directly to the body. The lock can only be rotated and cannot be moved longitudinally. This type is called a fixed type. Some locks are fixedly attached to the body by brackets and the locks are fixed. It can not only rot

The application of the hinge in the door leaf is very extensive and is an indispensable accessory. We rarely pay attention to it. It plays a big role in the door leaf, providing cushioning function when the door is closed, reducing noise. And friction.Next, I will introduce you to the important part