Cách sử dụng
A shim is a small, thin piece of material, like wood or metal, that is used to fill in a gap or space between two things. It's often used to make things level or flush. For example, if a door is uneven and doesn't close properly, you might use a shim to fill in the gap and make the door fit better. Shims can also be used in construction to make sure things are level, like when installing a window or building a cabinet.