... sound absorption , heat insulation , thermal preservation . Rock wool insulation products is made of inorganic fibre , it is insulation materials with ... son on .It can be made into rock wool board ,rock wool blanket , rock wool pipes .Rock wool board has good performance on ... and son on .It can be made into rock wool board ,rock wool blanket , rock wool pipes .Conductivity Coe<7 umNon-combustibility ...