1.from 70% to 80% of the industrial flyash, slag, fine sand should be reuse. 2.The compressive strength was as high as 25Mpa Hydraulic BDHDP-800 Double Press Brick Making Machine Line50,000,000 pcs standard brick per yearAmount consumed of fly ash is from 70,800 to 82,000 T As high as 25Mpa of compressive strength HDP-800 Double Press brick machine