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Expando, Expansive Mortar, Non Explosive Demolition Agent Used For Rock, Concrete Breaking « about-expando
(Clicks: 171;website added: Nov 5, 2013, about-expando)
What is Expando? | Expando expansive mortar is a non-explosive, non-toxic chemical detonation agent expanding mortar for splitting and breaking up rocks and concrete safely, quickly and quietly
about expando npn explosive chemical detonation noblast noblast breaking up rock crack concrete break rocks non explosive rock cracking