Umbrella plugs (rigid PVC) 32-55 mm

When charging vertical boreholes, these springs guarantee that the charge stays safely in place.
The umbrella plugs are used for blocking the charging columns by a gentle blasting and by rising boreholes as well as for blocking the water stemming.
For boreholes with a diameter between 32-55 mm

Product Information:
- Material: ridget pvc
- Weight per unit: 0.240 kg