Small cubage and large filling capacity make rubber stopper difficult to drift when washing, one another extrude and attrite, bring badly rubber scurfs and bad washing.

容积小，装塞容量大，使胶塞在清洗时产生堆积而无法浮动，相互挤压磨擦，会严重产生胶塞皮屑和清洗不好。