Heavy duty copper circuit boards refer to circuit boards that use thicker copper layers and are typically used in applications that require high current or power. Compared to standard thickness copper circuit boards, heavy-duty copper circuit boards have higher current carrying capacity and better heat dissipation performance.

　　Heavy copper circuit boards are widely used in power electronic equipment, high-power power supplies, electric vehicles, and industrial control equipment. Due to their ability to carry larger currents, these circuit boards can effectively reduce heating and energy loss, thereby improving the overall efficiency and stability of the system.

　　When manufacturing heavy-duty copper circuit boards, stricter production processes are usually adopted to ensure the uniformity and adhesion of the copper layer. These circuit boards also need to consider thermal management issues in the design and manufacturing process to prevent overheating and potential safety hazards.