... made of selected virgin coal. widely used for gas/air/water purification. CG4050,CG4060,CG3050,CG3060 are pelletized ... for the following applications:Purification and refining for Gas used in Chemical, Pharm and Food industry including ... , carbon dioxide, hydrogen, nitrogen, acetylene, chlorine, ethylene, cracking gas, inert gas, etc.Indoor air pollution removalSolvent recoveryWater purification, removing ...