HOT ROLLED STEEL STRIP TC-1680 large CNC mill the major structural parts are manufactured from high-quality Meehanite cast iron (HT300A+) the base is mounted with high precision linear ways with high feed rate, allowing the machine to perform high-speed cutting. Reinforced column base greatly increases structural strength. the large CNC mill Best Possible Structural Design The TC-1680 large CNC mill is designed to be new and more mechanical, improving the overall performance of the machine and increasing machine ...