I stood by the dock, surrounded by containers, watching these brightly painted machines being sent to Southeast Asia, Africa, and the Middle East. There was always an indescribable sense of achievement in my heart. On my export list, expensive excavators and heavy rollers were eye-catching, but what truly made me proud was the "evergreen" device, that seemingly simple yet ingeniously designed frog-type tamping machine. I exported tens of thousands of such machines, and its ability to consistentl