我们检查了人员和加工方法，发现工艺工程师有变化，零件的加工方法也变了，

We checked the personnel and the processing methods, and found that the process engineers have changed, and the processing methods of the parts have also changed. Previously, CNC machining was used once, and the counterbore of this batch of parts was completed by a milling machine.

We checked the personnel and processing methods, and found that the process engineers had changed, and the processing methods of parts had also changed. Before, it was processed once with CNC, and the counterbore of this batch of parts was completed with milling machine.<br>

We checked the personnel and processing methods, and found that the process engineers have changed, and the processing methods of parts have also changed. In the past, CNC processing was used once, and the counterbores of these parts were finished by milling machines.