Abstract: An improved combination wall is composed of a foundation member, two foam boards and two face boards. The foundation member has two wall boards spaced in a parallel manner. Located between the two wall boards are a plurality of partition boards arranged at an interval such that the partition boards are parallel to one another, and that the partition boards are perpendicular to the two wall boards, and further that both sides of each of the partition boards are fastened respectively with inner surfaces of the two wall boards. The two foam boards are fastened respectively with the outer surfaces of the two wall boards. The two face boards are fastened respectively with the outer surfaces of the two foam boards.

Abstract: A method of making EVA shoe midsole includes a compound containing in percentage by weight the substancessuch as 100% of ethylene vinyl acetate (EVA) into which 5-40% of filling agent, 1-10% of foaming agent, 0.5-3% of bridging agent, 0.5-5% of finishing aid, 0.1-1% of foaming aid and coloring agent are added. Such compound is made into particles to be injected into the primary mold in which the preliminary blank of midsole is formed. The preliminary blank is made to foam to take shape of a molded blank under heat and pressure so as to ensure that the size of the molded blank corresponds to that of the midsole intended to be made. The molded blank is then treated in the secondary mold under heat and pressure and is subsequently cooled to take form of the midsole intended to be manufactured.