... PART.1 Advantages1, Molding machine is specially designed and made to produce sandwich wall panel.2,Reliabale mechanics performance: mechanics performance of the compound ... of the wallboard include it's impact resist, perch up Strength, press, transverse resist.3, The door frame board can ... types directly.4, the product has sound insulation, fireproofing, and environmental protection.PART.2PART.3