| Heat treatment suppliers |
| Tempering |
| Radical nitriding |
| Nitrocarburizing |
| High-frequency Quenching |
| Vacuum hardening |
| QPQ |
| Hardening |
| and so on |
| Surface Treatment Suppliers |
| Zinc-nickel alloys |
| Ni P alloys |
| Titanize |
| Drawbench |
| Anodizing |
| Black Coating |
| Zinc Coating |
| Nickel plating |
| Chromium Plating |
| Polishing |
| Hard anodizing |
| and so on |
| Material Suppliers |
| Steel rod |
| Steel plate |
| Tube |
| Cold-drawn Profiles(Different kinds of steel) |
| Extruded Profile (Aluminum) |
| Foundry casting |
| Resin sand casting |
| Water glass casting |
| Precision Casting (Silica sol casting) |
| Cold upsetting |
| Gravity casting(Aluminum) |
| and so on |
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