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The archaeological visibility of the production and consumption of gold and silver ornaments increased substantially during the Iron Age. A large number of precious metalworks rendered with distinctive 'animal style' motifs have been recovered from elite tombs in north‐west China, and have attracted great interest when investigating the dynamics of exchange, mobility and transcultural encounters in Eurasian antiquity. However, little scientific research has been undertaken to examine the manufacturing techniques and metal composition of such 'animal style' artefacts found in north‐west China and its neighbouring areas in a broader Eurasian context. Using multiple non‐invasive analytical methods, we conducted a detailed scientific analysis of two groups of precious metals excavated from Dongheigou Tomb 12 (fourth–second centuries bce) and Xigou Tomb 1 (third–second centuries bce) in present‐day Balikun county, Xinjiang Uygur Autonomous Region. The results suggest that mould‐pressing technology was employed for the production of the 'animal style' appliqués found in these two tombs. The current analysis provides a definitive explanation for the traces of superficial crafting through their specific microstructure and the tool marks of manufacturing, and will thus be of significant interest for further research concerning the metallurgic knowledge and technological practice of precious metalworking industry in north‐west China and Central Asia. [ABSTRACT FROM AUTHOR]