| 摘要 |
PURPOSE: A liquid container made of metal material is provided to receive a lot of amount of liquid therein as well as to withstand pressure applied to the bottom of the container by providing reinforcement part to the bottom of the container. CONSTITUTION: A liquid container made of metal material is formed with a reinforcement part for withstanding and reducing pressure applied thereto on the bottom of the main body of the liquid container(1), wherein the reinforcement part includes a plurality of downward protrusions(11) and a plurality of grooves(12) which are formed radially from the center of the bottom surface and the grooves(12) are formed upwardly with a predetermined angle beside the respective protrusions(11), so that the container(1) receives more amount of liquid therein comparing to the one of which bottom surface is curved in the shape of parabola and withstands pressure applied to the bottom surface by absorbing the pressure with the reinforcement part provided to the bottom part thereof.
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