Container

A container, comprising an outer shell, an inner liner disposed in the outer shell, and a metal composite ring, wherein the inner liner and the outer shell are made of different metals respectively, a top end of the outer shell is fixedly connected to a top end of the inner liner, the metal composite ring comprises an inner metal ring and an outer metal ring, the inner metal ring comprises an annular first welding portion and an annular first connecting portion, the outer metal ring comprises an annular second welding portion and an annular second connecting portion, the annular first welding portion and the annular second welding portion are disposed opposite to and spaced apart from each other, the annular first connecting portion and the annular second connecting portion are located between the annular first welding portion and the annular second welding portion and connected in a sleeved manner, one of the inner metal ring and the outer metal ring is made of the same material as the inner liner and welded to the inner liner via one of the annular first welding portion and the annular second welding portion, and the other of the inner metal ring and the outer metal ring is made of the same material as the outer shell and welded to the outer shell via the other of the annular first welding portion and the annular second welding portion.