... high strength steel advanced welding technique, excellent manufacturing quality, durable and firm, stable, reliable work.4. Using multi-pole oriented ... river sand, fly ash, white ash, waste bricks, waste tile, and cement can be integrated into a material can be used.QT8 ... .4. Raw Materials: Concrete- river sand, stone powder, cement, fly-ash,and industrial dust. parameter of Standard size of brick QT8 ...