Features: 1) Material: mineral wool 2) Fireproofing, heat preservation, heat insulation, sound absorption 3) No contamination, no formaldehyde Preponderance: 1) advanced equipment, excellent technique, exquisite technology 2) posses independent export right and perfect transportation system 3) provide quality service at factory price We can supply various kinds of mineral wool boards. If you are interested in our products, please contact us and tell me your detail requirements