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Wire drawing
Thirteen dies from 5.5 mm rod to 0.025 mm wire, with the anneal sequence that keeps it ductile.
Read more →Melting and heat treatment
Parallel melts, controlled H₂/N₂ annealing, and the surface finish the drawing asks for.
Read more →Testing
What runs on every metre, what runs once per lot, and what appears on the document.
Read more →Packing and delivery
Spool sizes, marking, and export packing that keeps the batch number readable.
Read more →One site, from melt to spool
Melting, rolling, drawing, annealing, finishing, testing and packing are under one roof in Changzhou. Nothing between the furnace and the spool is subcontracted.
| Melting | Vacuum and atmosphere melting, parallel heats |
| Hot working | Billet reduced to wire rod on a continuous mill |
| Cold working | Multi-block drawing, carbide roughing and diamond finishing |
| Annealing | H₂/N₂ atmosphere, intermediate and final |
| Finishing | Bright, oxidised, pickled, or electro-polished |
| Testing | In-line laser diameter, eddy-current surface, per-lot EMF or resistance |
| Packing | DIN spools, coils, custom reels, batch number on the flange |
What this changes for the buyer
The practical difference between one plant and three subcontractors.
- A question about a specific delivery is answered from our own batch record, not from a mill’s campaign sheet.
- A change of diameter or temper does not require a new supplier qualification — it is a different drawing schedule on the same line.
- Where a specification cannot be met, it is found at quotation because the same people set the tolerance and quote it.