German reverse graffiti artist Klaus Dauven used a high-pressure washer to clean the algae, lichens, mosses and other organic dirt on the surface of dams in various countries. Through the contrast between the cleaned and uncleaned parts, a large reverse painting was formed. No chemical cleaning agents were used in the whole process, achieving a truly green creation.

he permanent magnet frequency conversion high-voltage cleaning machine is a high-voltage cleaning equipment that uses permanent magnet frequency conversion technology. It combines the efficient performance of permanent magnet motors with the flexible control of variable frequency technology, providing powerful power support for various cleaning needs. This cleaning machine not only has the advantages of high efficiency and energy saving, but also can maintain a stable working state in different working environments.

From manufacturing to "smart manufacturing", the "old friends" of the Canton Fair have a new atmosphere