Zhou artisans are primarily known for their advancements in metallurgy, particularly in the development of bronze for tools and weapons as well as advancements in agriculture. However, the most notable discovery among the options provided is how to mold bronze into farm tools. This technology played a significant role in improving agricultural productivity during the Zhou dynasty.
While they also contributed to silk production and made technological advancements in iron, the primary association with Zhou artisans is bronze.