The heavy-duty carbon steel galvanized plug is used with the heavy-duty stainless steel ball quick connector. Its unique quick connection and disconnection mechanism not only simplifies the operation process, but also ensures the stability and safety of the connection. This design reduces the time of manual intervention and improves the smoothness of the overall operation process. In order to ensure a stable connection under high pressure, we innovatively configure three layers of sealing rings on the female part of the plug. This design not only improves the sealing effect, but also effectively prevents medium leakage. The main body of the plug is made of high-quality carbon steel material. After precision processing and strict quality control, the surface is galvanized. The galvanized layer not only effectively isolates air and moisture, but also resists the erosion of various chemicals.