Core of door hardware; rollers, dampers, complete DIY kits.
Aluminum profiles and surface finishing (anodizing / powder coat).
Stamping, hardware sets and export-oriented factories.
Trade, logistics and certification services hub.
Precision parts and component supply.
Figures illustrate cluster concentration, not a precise count. We recommend only within the verified range.
Aluminum, rollers, dampers and profiles cluster within a 1.5h drive, so comparison and consolidation are fast.
We screen within one belt we know well, not scattered across the country.
For the systems we ship, the South China already covers the supply.
Filter the library by system; read the buyer notes, then shortlist.