... foil 5.Free samples Hebei Borunde Building Materials Co.,Ltd1.rockwool board2.heat and sound insulation3.rock wool refeactory from R ... .1~54.option aluminum foil5.CE,SGS appr.Rockwool insulationRock wool, also known as rock wool, mineral wool is ... (mm)Length (mm)Width (mm)RemarksRock Wool Board(Sheet,Slab,Strip)6050~100900—4000600—1300process glass cloth, aluminum foil, or glass ...