Liquid container and method of its manufacturing

The liquid container comprising: Is formed shell outer wall; Is formed holding liquid in gallbladder's wall; the large end of said with the internal same shape of an outer wall; and inner liner with multiple flexible and can separated from the outer wall, a clamping part, wherein multiple parts on inner wall is welded with a here, and is on the outer wall is provided on the clamp, in order to is supplied to consisting of an outer wall of the bracket; function, The welding head two sides, wherein the inner comprises a thick part; the thickness of the thick part is more than of the wall thickness of the other part; And the thick part of the outer surface and connected with the outer wall of the inner surface corresponding to the part on the inner wall of the inner surfaces form a cavity.