Prove it before we pour it
Tooling and casting simulation run before the die is cut. Problems get solved on screen, not in a scrapped batch.
An investment casting factory built on one idea: the company that pours the metal should also be the company that finishes and proves the part.
Chang Gu Viet Nam Co., Ltd has been committed to the development and production of high-quality, high-performance precision castings since 2009.
Our business covers the manufacture and sale of stainless steel, carbon steel, alloy steel and other metal precision castings and their machining, the sale of casting materials, and direct import and export trade.
Our development strategy rests on four points: market orientation, innovation-driven engineering, focus on skilled people, and efficiency. By combining technological innovation with industry and research cooperation, we keep merging metallurgical technology with investment casting and digital production control.
| Casting method | Investment casting (lost wax), silica sol shell system |
|---|---|
| Materials | Stainless steel, carbon steel, alloy steel and other metal alloys |
| Wax room | PLC wax injection machines, automatic de-moulding, PLC wax recycling |
| Shell line | Automated slurry dipping and sand shower, climate-controlled drying, autoclave de-wax |
| Melting | High-frequency induction melting and pouring |
| Machining | In-house CNC turning and milling lines, deburring and polishing |
| Inspection | CMM, optical emission spectrometer, leak and pressure testing, visual and dimensional checks |
| Commercial | OEM build-to-drawing production, direct import and export trade |
| Certification | ISO 9001:2015, certified by SGS United Kingdom Ltd, certificate VN26/00000039, valid 19 Jan 2026 to 20 Jan 2029 |
Tooling and casting simulation run before the die is cut. Problems get solved on screen, not in a scrapped batch.
Wax injection, slurry dipping and sand shower are machine-controlled, so part 10,000 matches part one.
Chemistry, dimensions and leak-tightness are recorded against the production order before packing.
Send a 2D drawing or 3D model with material, quantity and market. You get a manufacturability review and a price.
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