Grinding Tube ProcessingManufacturerThe yield can only reach about 60%, while using cold drawing production, the yield can exceed 95%.(3) High metal utilization: When manufacturing cylinder blocks using traditional boring methods, the metal utilization rate is only 50-70%.45# Quilting ThreadMachined Tube45# Cold Drawn Steel Pipe, 20# Cold DrawnMilled Tube20# stitched steel tube, 20G stitched tubeMachined Tube20# Cold Drawn Steel Pipe, 45# Cold Drawn SteelMilled Tube45# Cold Rolled Steel Pipe, QuiltedMachined TubeWelded steel pipes, 27SiMn pipesMachined Tube27SiMn rolled steel pipe