On top storage of water formation and the air chamber, the valve which provides the being embarrassed chamber in lower part

摘要

(57) Abstract Objective The seal processed cover and the like is not done, the te, the sack & the containerThe valve which contents ones that try do not spill. Constitution Film such as synthetic resin nonferrous metal rubber paperWith the valve which designates the material of condition as sack condition of two piles, in pressure of contents onesFrom it closes.