| 摘要 |
PROBLEM TO BE SOLVED: To integrally mold an inside plug 10 only with a hard synthetic resin.SOLUTION: This invention provides a hard synthetic resin-made inside plug 10 fitted to a mouth part 21 of a hard synthetic resin-made chemical solution container 20, wherein a nozzle part 11, a flange part 12, and a skirt part 13 are integrally molded, and the skirt part 13 is formed in such a manner that an upper small diameter part 13a, a middle swollen part 13b, and a lower taper part 13c are continuous in this order smoothly. |
