| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a container of synthetic resin material where surface sink is unlikely to occur in an area located between a plurality of horizontal grooves, which are arranged horizontally and disposed circumferentially. <P>SOLUTION: The plurality of horizontally-arranged horizontal grooves 41b are disposed circumferentially, and grooves 44 shallower than the grooves 41b are disposed in an area 45 located between the horizontal grooves 41b. <P>COPYRIGHT: (C)2012,JPO&INPIT |
