Head refers to a component used to seal the end of a container and isolate its internal and external media, also known as an end cap. The head of a cylindrical container is generally a rotating shell.
According to the shape of the head surface, it can be divided into convex, conical, flat, and combination shapes. Convex head refers to a head with a convex outer surface shape, such as semi-spherical, elliptical, disc-shaped, and non folded spherical heads.
Some gas cylinders adopt a combination bottom head with a convex surface facing inward, which can ensure strength and meet the requirements of safe use.
