{灌装阀}{灌装机头}{灌装机嘴}{液体灌装阀}{气动灌装阀}{灌装机配件}{直线潜入灌装阀}{负压灌装阀}{虹吸灌装阀}{酱类灌装阀}{直线油类灌装阀}{灌装阀}{灌装机头}{灌装机嘴}{液体灌装阀}{气动灌装阀}{灌装机配件}{直线潜入灌装阀}{负压灌装阀}{虹吸灌装阀}{酱类灌装阀}{直线油类灌装阀}波纹套固定在阀盖延伸体的下灌口。波纹套的纵断面为曲线形或矩形。波纹套材料为金属或塑料或橡胶或
