Head

The head refers to the component used to close the end of the container to isolate the inner and outer media, also known as the end cap. The heads of cylindrical containers are generally twisted housings. According to the shape of the surface of the head, it can be divided into a convex shape, a conical shape, a flat plate shape and a combined shape. A convex head refers to a head having a convex outer surface, such as a hemispherical shape, an elliptical shape, a dish shape, and a non-folded spherical head. Some cylinders use a convex-inward-facing combination bottom seal to ensure strength and meet the needs of safe use.