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Jian Chang's micro precision turning capabilities are particularly suited to high-value industries that require tight tolerances, specialized materials, and ultra-small dimensions.
Optical communication demands extremely tight dimensional tolerances and consistency. Jian Chang has extensive experience producing high-precision metal components for fiber optic applications — from prototype to high-volume production.

Wafer handling, alignment, and fixturing equipment require large quantities of precision locating PINs, spacers, and fasteners — all with extremely tight dimensional consistency.
Jian Chang's capability with high-hardness materials such as SKH9 and SUS440C, combined with proven mass production of precision PINs, directly meets this industry's requirements.
Medical device components require biocompatible materials (SUS316L, Titanium), ultra-high precision, and surface cleanliness. Orders are often custom low-volume or high-mix low-volume — exactly the type of work Jian Chang specializes in.

Inconel 718, A286, and Titanium are difficult-to-machine superalloys that most general turning shops refuse to handle. Jian Chang has proven production experience with these materials — well suited for precision small parts in aerospace supply chains.

Robot joint shafts, precision drive shafts, and coupling components require high roundness and straightness — often with high L/D ratios. This is exactly where Swiss-type guide bushing lathes excel.
