Our glass wool blankets isof excellent rebound property,when reachs the destination,unpack the glass wool, it will rebound almost to the original level in 24 hours.Usage: Heat preservation for steel structure building Heat insulation for wall and roof of house to save energy For indoor partition wall,Train compartment Special specification can be made upon on request.Standards: According to GB STANDARDS, EN13162, EN13172, ISO9001:2000