Stageli factory direct round shell for electrical igniters fireworks display

The paper shell in fireworks plays a crucial role. The paper shell is an outer casing that encloses the pyrotechnic composition and effect devices, and its functions include:

1. **Protection**: The paper shell effectively protects the pyrotechnic composition and effect devices from external environmental factors such as moisture, dust, etc. This helps ensure that the fireworks remain stable and intact before ignition, thereby reducing the risk of accidents.

2. **Formation of Shape**: The paper shell can shape the external appearance of the fireworks. By controlling the size, shape, and structure of the paper shell, various fireworks effects can be created, such as round, heart-shaped, star-shaped, etc., thus showcasing different aesthetic effects.

3. **Control of Burning**: The paper shell can control the burning rate and manner of the pyrotechnic composition upon ignition. By adjusting the design and materials of the paper shell, the burning time, color, and effects of the fireworks can be influenced, thus meeting more precise performance requirements.

4. **Safety**: The paper shell helps mitigate the power of fireworks explosions, reducing potential hazards to the surrounding environment and audience. It provides an additional layer of protection, making fireworks displays safer and more manageable.

In summary, the paper shell plays multiple roles in fireworks, not only protecting and shaping the fireworks but also controlling their burning mode and effects, thereby ensuring the safety and aesthetics of fireworks displays.