Compared with traditional formwork, our hollow plastic formwork has practical advantages that bring real value to construction projects. Firstly, it is lightweight, which is much lighter than steel formwork and easier to carry and install manually, without the need for large hoisting equipment, helping to reduce labor intensity and save about 20% of labor costs compared with plywood formwork. Secondly, it has a long service life and can be reused more than 50 times under normal maintenance, which is much higher than wood and bamboo-wood composite formwork, effectively reducing the amortization cost of formwork for long-term or large-scale projects. Thirdly, it is eco-friendly and energy-saving, requiring no wood cutting or toxic chemical adhesives during production, and can be recycled and reprocessed after reaching the service life, avoiding resource waste and environmental pollution. In addition, the formwork has good weather resistance and corrosion resistance, and can be used in special projects such as coastal areas and mines without additional anti-corrosion treatment; its smooth surface does not require release agent during use, and can be cleaned easily with high-pressure water, reducing maintenance work and related costs.