A comprehensive technical manual on Chinese architecture and building standards, published in the Song Dynasty by Li Jie in 1103. It is the oldest extant Chinese building code and describes various construction techniques and materials used during its time it established national standards for materials and labor.

The industry specifically involved in the contracting of construction and building repair work

A traditional unit of length (standard foot) used during the Qing dynasty, equivalent to approximately 0.32 meters

a professional builder or contractor in the construction industry