Juanzhai kaogong ji jie 鬳齋考工記解 : 二卷 / Lin Xiyi zhuan 林希逸撰.

Juan 鬳 also read 'Yan' in some sources (including the Library of Congress online volume, which omits the variant character altogether)

See LoC edition

Digital edition from unknown source. Similar to Harvard online edition (link below) but with numbered pages.
Each frame displays 4 pages of the original.
"十一行二十字, 左右雙邊, 白口, 單魚尾. 版心下刻"通志堂". 框高19.8 x 14.4 公分.+--OCLC record.
Online at Harvard Online Resources.

Local access dig.pdf. [KaogongJijie.pdf]

Kao gong ji : the world's oldest encyclopaedia of technologies / translated and commented by Guan Zengjian, Konrad Herrmann.

"Revised and updated translation from the Chinese edition: [Chinese characters] (ISBN: 978-7-313-12133-2) by Guan Zengjian, © Shanghai Jiao Tong University Press 2014. Published by Shanghai Jiao Tong University Press."--Title page verso.
""This edition is jointly published with Shanghai Jiao Tong University Press"--Title page verso.
Includes bibliographical references (pages 189-215) and indexes.
English, German and Chinese; commentary in English.

"In Kao Gong Ji: The World's Oldest Encyclopaedia of Technologies, Guan Zengjian and Konrad Herrmann offer an English translation and commentary of the first technological encyclopaedia in China. This work came into being around the 5th century C.E. and contains descriptions of thirty technologies used at the time. Most prominent are bronze casting, the manufacture of carriages and weapons, a metrological standard, the making of musical instruments, and the planning of cities. The technologies, including the manufacturing process and quality assurance, are based on standardization and modularization. In several commentaries, the editors show to which degree the descriptions of Kao Gong Ji correspond to archaeological findings"-- Provided by publisher.

Local access dig.pdf. [Kao Gong Ji.pdf]