The Conical Head also known as the cone shell, is a kind of head shaped by stamping and hot formed, the shaped like a vertebral body . It is generally divided into conical head with flanged edge and conical head without flanged edge.Because the shape of the conical  head is not complicated .So the manufacture of conical head is relatively simple.It has a special parameter which is the cone Angle.The conical head has the advantage of being easy to collect and write out the solid materials.It is often used in various pressure vessels and pressure pipelines, and it is generally suitable for atmospheric pressure equipment,  as well as in the link transition between two pieces of cylinder with different diameters.