Nuts, also known as nuts (English: Nut), is a tool for fixing, with a hole in the center and a thread on the inside of the hole. Nuts are often shared with screws of the same size to fix the releva...
The function of the hollow gecko is the same as that of the screw. It is used when self-tapping screws and expansion screws are not suitable. For example, in the light steel frame partition wall ha...
Embedded parts (prefabricated parts) are the components that are pre-installed (buried) in concealed works. They are the structural parts that are placed when the structure is poured, and are used ...