Building Materials Supply. Presently dealing with BIS Certified AAC Blocks, Fly ash Bricks size 9X4.25X3", Crack prevention plastering meshes both GI and Fibre size from 4" X50 mtr,6"X50 mtr, 8"X50 mtr. Light weight filling material of 12.5 kg Packing {Vermiculite) and Fly ash jumbo Packing 1.5 Ton.