It uses a mixture of water and an abrasive such as recycled glass, silica sand, or coal slag ... of media can be played. Need to paint strip your car? This process is called dustless blasting.

TEHRAN: A blast caused by a gas leak at a coal mine in eastern Iran has killed at least 30 people, state media said Sunday, with more than 20 others reported missing. "The death toll in the Tabas ...