This is a large-scale injection mold specially designed for public sanitation and municipal waste sorting wheelie bins. Considering the harsh outdoor usage environment, the mold is engineered with thick walls and reinforced ribs distributed around the body. This ensures the finished wheelie bins possess high impact and anti-aging resistance. The bottom wheel mold and front pedal linkage structures operate smoothly, guaranteeing that even fully loaded, sanitation workers can easily push and open the lid.