PAC Partition panels system is the best solution for high rise buildings where speed is needed to complete all interior walls (10 cm or 15 cm) and exterior walls (20cm or 25 cm or 30 cm) in conjunction with the completion of post tension slabs usually 2 weeks for each floor. PAC Panels can be erected before slab casting by tower head crane especially 20 cm or 25 cm panels which are heavier in weight or by Special trolley provided by ESPAC for 10 cm and 15 cm panels after the slab casting.