Tongyong Industries connects global buyers with precision etching capabilities, with production carried out through Tongyong Hardware — etching stainless steel, copper, aluminum, nickel, and titanium into burr-free, micron-accurate components. We supply electronics, automotive, medical, and aerospace customers with the metal parts inside their end products.
✓ Fine-feature, thin-gauge etching for electronics and automotive components such as EMI shielding, battery contacts, sensor parts, and connectors
✓ Acid etching process with burr-free, stress-free results that preserve material integrity
✓ Part number etching in metal for full production traceability
✓ Documentation and reports available for medical or other regulated projects upon request
Etching: Full-precision etching services from custom prototypes to large-volume production runs
Real parts machined in our facility for global customers
We accept custom manufacturing based on your drawings, 3D files, or reference samples.
Our technical capabilities and precision manufacturing specifications
±0.02 mm
(Depends on feature size, line width, and engraving depth)
≥ 0.02–0.05 mm
(Depends on laser type and material)
±0.025 mm
(Typical tolerance; depends on material thickness and feature size)
≥ 0.05 mm
(Depends on material and thickness)
3–7 days
5–10 days
Trusted by engineers and manufacturers across 30+ countries
Global Customers
Integrated Process Lines
Years of Manufacturing Experience
Engineering Response
On-Time Delivery Rate
Our Process
Send us your drawings, specifications or application requirements.
Our engineers evaluate feasibility and suggest optimized solutions.
Receive a detailed quote with pricing, lead time and specifications.
Prototype samples are produced for testing and confirmation.
Mass production with strict quality control at every stage.
Secure packaging, on-time shipment and full after-sales support.
Our quality system is built around prevention, not just detection. From raw material traceability through in-process SPC monitoring to final CMM verification, every step of our precision etching process is controlled and documented.
Every batch is verified on our coordinate measuring machines. We provide full dimensional inspection reports with every order.
ISO 9001, ISO 14001, and ISO 45001 — held by Tongyong Hardware, our China manufacturing entity, within the scope stated on its certificates.
We provide material certificates, first-article inspection reports, and process documentation for full traceability in precision metal etching projects.
Dedicated engineers review every DFM, suggest cost-saving optimizations, and stay with you from first prototype to production.
Explore Premium Processes & Materials for Your Components
Excellent corrosion resistance and stability for precision thin parts
High elasticity and fatigue resistance, ideal for precision connectors
Good conductivity and fast etching speed, suitable for fine patterns
Suitable for precision thin-sheet components with stable structure
Explore Premium Processes & Materials for Your Components
Applications
Faq
Find answers to common questions about our metal etching services.
Etching alters or removes only the surface layer, while engraving cuts a deeper groove that can be felt with a fingertip. Etching suits fine, shallow markings; engraving suits deeper, more durable marks.
Chemical etching is generally more cost-effective for large runs with a fixed design. Laser etching is more efficient for frequent design changes or multiple part variations.
Yes. Both chemical and laser etching work well on aluminum, in addition to stainless steel and other common metals.
Yes — copper etching and brass etching are both supported using the acid etching process, in addition to stainless steel and aluminum.
Get Started Today
Upload your drawings and specifications. Our engineers will review and respond with an engineering review within 24 hours. All inquiries are treated with strict confidentiality.
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