Guindy machine tools limited or gmt is engaged in the work holding, work positioning, machine tool, metrology and foundry business. It is accredited with the iso 9001:2000 & iso 14001:2004 certification of quality and environmental systems. The cast iron products are made of close grain cast iron with hardness from 190 to 210 bhn. Two grades available: grade i - hand scraped; and grade ii - machined. The straight edge - i-section straight edges are designed for maximum stability. Its weight is optimized.