We are the only Manufactur and exporter of non-explosive cracking agent ( crack-rock ) and hydro bag in Iran Hydro-bag This has happened in the marble and stone quarrying industry , specifically for stripping blocks from the mountain . HYDRO-BAG has completely upset bench excavation in quarries . The revolutionary aspect of the HYDRO-BAG equipment lies basically in the possibility of stripping blocks up to 1000 tons or more , without the need to prepare slots to house the jacks since the HYDRO-BAG has an original thickness of just 2 mm ( 0.08? ) and can be easily slipped into the wire saw cut . Crack-rock Crack-rock is a highly expansive mortar to demolish and cut rocks and concretes . crack-rock swell when poured into a Hole and develops a pressure higher than 7500 t/m2 on the hole walls , thereby breaking them open . crack-rock is environmentally friendly because it releases on toxic fumes or harmful substances of any kind .