CONSTRUCT A 2 BEDROOM BUNGALOW WITHIN 8 HRS USING PRECAST CELLULAR CONCRETE POSTS AND SLABS. IDEAL FOR LOW COST MASS HOUSING OF EXCELLENT QUALITY. ITS A STRONG , DURABLE, FAST, AND AFFORDABLE BUILDING SYSTEM. EQUIPMENT,MOLDS AND TECHNOLOGY TRANSFER AVAILABLE FROM SIEL ENGINEERING LAGOS, NIGERIA sielengineering2@gmail.com +2348033436057