Prefabricated partition panel made of modified building gypsum, chemical additives, glass-fibre mesh and reinforced polypropylene fibre. Sizes: 3000×600×100/120/150/200 mm. Lightweight and seismic-resistant, fireproof and sound-insulating, moisture-proof and flame-retardant, energy-saving and fast to install dry, with a flat surface ready for putty and finishing.