The Cast Iron T/V/U-slot Surface Plates is mainly used as machining working surfaceof machine tools. Some holes and T-slots on the top surface of plates forfixing the work piece and clearing the scrap iron during the processing. The rawmaterial is the high-strength cast iron GG20-GG30 (HT200-HT300). The size rangeis from 100mm*100mm to 3000mm*8000mm. Larger one can be made according to the drawing.