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Series 2 of Autostem is available in 150,200 and 300 grams. These unique cartridges lock themselves on 2 sides in the borehole. This means that you can place the cartridges in one borehole at different depths. These cartridges are very suitable for mine and tunnel work. Also if you need more power than the Series 1, you can choose Series 2. Because these cartridges are suitable for weakening of stone and concrete both above and below water.
