... . Good sound absorption and moisture-proof. Rock wool board , Rock wool,Rock wool pipeRock wool produts are manufactured with basalt ... raw material which is made into rock wool board, rock wool pipe/ rock wool blanket /rock wool felt.Characteristic: 1.Insulation.2 ... -150kg/m3ApplicationRock wool is widely used for construction walls,roofs,industrial furnaces,ovens,heat-treating,equipment,storage ...