Profile: Power Crown International Corporation is a manufacturer & exporter of glass wool, rock wool, NBR foam insulation, and aluminum foil heat insulation. Glass wool is an insulating material made from fiber glass, arranged into texture similar to wool. Glass wool is a kind of glass fiber, and a kind of artificial inorganic wool, adopting such ores as quartz, sand, and lime stone as the main ingredients, and then co-ordinating with some chemical materials such as soda ash & borax. It can be used as porous material with excellent thermal insulation & sound absorption performance.