Sell gas expand powder

Description

Static expand powder can separate rock by low speed expand&#****2;but the reaction speed is very slow and easy affected by temperature. Gas expand powder invented by our company overcome the drawbacks above to some extent, gas expand powder is fire-resistant, can bear impact, less dosage and low cost. Use specialized ignition manner without detonators fuzing blasting to make powder generate large amounts of gas within *0s, the transmission speed of detonation is only **0 m/s, no damage to any stone and no detonation phenomenon. Security, speediness and not affected by temperature. It is a pioneering work in the history of mining. The powder is widely applicable to backout indoor, construct dam, mining tunnel.