Variable-diameter tube — Liyuan catalog research
The source describes an internal-variable-diameter seamless tube made by extrusion with a moving mandrel. Exact alloy, wall and bore profile, tolerances and application acceptance remain to confirm.
Source-named aluminium catalog entry
Jilin Liyuan Precision Manufacturing — company research · 吉林利源精制股份有限公司
Manufacturer title: 变径管. The source describes an internal-variable-diameter seamless tube made by extrusion with a moving mandrel. Exact alloy, wall and bore profile, tolerances and application acceptance remain to confirm.
Product source and scope
Read the manufacturer product entryhttps://www.liyuanlvye.com/product/60.html
Actual source body reviewed 8 October 2026. Production or structure prose supports this catalog record; it does not establish a selected model, current supply or verified application performance.
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