MBI - Hydraform Blocks | MIDROC Technology Group. HYDRAFORM BLOCKS Hydraform Blocks are used for Construction Residential Houses, Factories, Schools, Museums, Secunty fences, Stores and Warehouses, etc. MBI produces two types of blocks (220x220x115mm and 220x140x115mm) for use in external and partition construction works respectively.Half lengths of the above …