Cutting workpiece to investigate microscopic structure, while the cut must be careful not to the workpiece heating and cutting can't cut by gas (Gas cutting) because the heat will cause the structureCutting the most widely used is the hand saw band saw, which is economical and simple, suitable for use with lower hardness of metal cutting saw blade. Another way is to cut with a cutter (Cut off machine).
การแปล กรุณารอสักครู่..