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Conclusion

The technological advancements represented by square boat nails point to a more extensive understanding of marine engineering in ancient China. The ability to create robust, watertight vessels facilitated not only domestic trade but also overseas exploration. It is estimated that during the height of maritime activity, Chinese merchants traveled as far as Southeast Asia and even the East African coast, aided by their seaworthy ships. The reliability of these vessels depended heavily on the quality of construction, with square nails playing a pivotal role.

Additionally, the ease of fabrication of fiberglass rod stock is beneficial for manufacturers. It can be easily molded into different shapes and sizes, allowing for custom solutions tailored to specific needs. The material can also be reinforced with additional fibers, providing further strength and enhancing its usability in demanding applications.

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