The PROPANEL fireproof rock wool wall sandwich panel is an excellent choice for the enclosure system of industrial buildings. Two layers of high-quality colored coated steel plates or other metal plates are selected as the base plate. The rock wool is firmly bonded to the metal plates using a high-adhesion adhesive. The rock wool wall panel has A-level non-combustibility, excellent thermal insulation properties, outstanding sound insulation effect, sturdy and durable, environmentally friendly and aesthetically pleasing.