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...
Hexagon socket screws are also called cylinder head screws, also called hexagon socket bolts. Hexagon socket screws are divided into iron hexagon socket screws and stainless steel hexagon socket sc...
That is teeth, also known as screw. It is the name of the Han nationality furniture parts in the Ming and Qing Dynasties. The corresponding standard is not found in the national standard, correspon...