Custom Metal Fabrication China | CNC, Stamping & Welding

Custom Metal Fabrication Services

Precision CNC Machining, Sheet Metal Fabrication, Stamping & Surface Finishing — One-Stop Manufacturing Partner for Global OEMs

Qingdao Inside Industry delivers Custom Metal Fabrication Services for industrial clients across 20+ countries. Our ISO 9001:2015 certified facility in Qingdao, China integrates CNC machining, sheet metal fabrication, metal stamping, and surface finishing under one roof — providing a seamless, DFM-backed manufacturing solution from rapid prototype to mass production.

✔ ISO 9001:2015 Certified
✔ ±0.01mm Achievable Tolerance
✔ TRUMPF Fiber Laser Systems
✔ Hexagon CMM Inspection
✔ No MOQ — 1 Piece to 100,000+
✔ RoHS & REACH Compliant

Precision CNC Machining Services
Milling, Turning & 5-Axis

Our CNC Machining Services deliver complex metal and plastic components with tolerances down to ±0.01mm. Equipped with 3-axis, 4-axis, and 5-axis CNC machining centers, we handle everything from intricate aerospace brackets to high-volume automotive housings with consistent dimensional accuracy.

We specialize in Aluminum 6061-T6, 7075-T6, Stainless Steel 304/316L, Titanium Grade 5, Brass, and Engineering Plastics including PEEK and POM — combined with a mandatory DFM review on every new project to reduce your cost and lead time before the first chip is cut.

3-Axis, 4-Axis & 5-Axis CNC centers for complex geometries
±0.01mm standard precision | Surface finish Ra 0.4 – Ra 3.2
DFM review included — clients average 20% cost reduction

Custom Sheet Metal Fabrication
Laser Cutting, Bending & Welding

Our Custom Sheet Metal Fabrication Services combine TRUMPF fiber laser cutting, CNC press brake forming, and robotic MIG/TIG welding to produce precision structural components and assemblies for industrial machinery, EV applications, and automation enclosures.

From simple brackets and chassis panels to complex multi-part weld assemblies, our sheet metal team manages the full production workflow — cutting, bending, welding, and surface finishing — delivering batch-consistent quality with full dimensional documentation on every shipment

TRUMPF fiber laser cutting — carbon steel, stainless, aluminum
CNC press brake bending up to 3000mm length
AWS-certified robotic & manual TIG/MIG welding

High-Volume Metal Stamping & Progressive Die Tooling

For high-volume OEM production requirements, our Metal Stamping Services deliver repeatable precision at scale. We specialize in progressive die stamping, deep drawing, and blanking — producing clips, contacts, brackets, and hardware components for the automotive, electronics, and consumer products industries.

Our in-house tooling team designs and maintains custom progressive dies, reducing per-unit cost significantly at volumes of 10,000 pieces and above. All stamped parts undergo dimensional verification and material certification as standard.

Progressive die stamping — up to 100,000+ pieces per run
In-house die design & maintenance for cost control
Copper, Spring Steel, Carbon Steel, Brass

Why Global OEMs Choose Qingdao Inside Industry

We don’t compete on price alone. Our clients return for one reason: we reduce the engineering risk between design and production.

How to Work with Us?

CNC Machining Parts

Sheet Metal Fabrication Products

Frequently Asked Questions

What custom metal fabrication services do you offer?

We offer four core manufacturing services: (1) Precision CNC Machining — 3-axis, 4-axis, and 5-axis milling and turning; (2) Custom Sheet Metal Fabrication — laser cutting, CNC bending, and robotic welding; (3) Metal Stamping — progressive die, deep drawing, and blanking; (4) Surface Finishing — anodizing, powder coating, passivation, and electroplating. All services are available as part of a one-stop manufacturing workflow with DFM engineering support.

What tolerances can you achieve?

Our standard CNC machining tolerance is ±0.05mm. For precision applications, we regularly hold ±0.01mm (10 microns) on milled and turned components. Surface roughness ranges from Ra 0.4 to Ra 3.2 depending on process and specification. Tighter tolerances are achievable through grinding processes following engineering review.

What is your minimum order quantity (MOQ)?

We have no minimum order quantity. We accept single-piece prototype orders through production runs of 100,000+ units. For low-volume orders (1-50 pieces), we typically return a quote and begin production within 1-3 business days of file receipt.

What materials do you work with?

Our most commonly processed materials include: Aluminum (6061-T6, 7075-T6, 5052), Stainless Steel (304, 316L, 17-4 PH), Carbon Steel (1018, 4140), Brass, Copper, Titanium Grade 5, and Engineering Plastics (PEEK, POM/Delrin, Nylon). Special alloys are available on request with material certification.

What is your typical lead time?

Rapid prototyping (1-5 pieces): 3-7 business days. Small batch (10-50 pieces): 7-14 days. Production run (100+ pieces): 15-25 days depending on complexity, material, and surface finishing requirements. We offer expedited production for time-critical projects.

Do you provide quality documentation and certifications?

Yes. Every order ships with a dimensional inspection report. On request, we provide First Article Inspection (FAI) reports in PPAP-compatible format, Mill Test Reports (MTR) from accredited mills, RoHS and REACH compliance declarations, and CE documentation support. We are ISO 9001:2015 certified and welcome third-party inspections from SGS, TUV Rheinland, or Bureau Veritas.

How do you protect my intellectual property (IP)?

We sign Non-Disclosure Agreements (NDAs) before reviewing any customer design files. All CAD data is stored on our restricted-access internal server and is never shared with third parties or replicated for other customers under any circumstances.

How do I get a quote?

Upload your 2D drawings (PDF/DXF) or 3D CAD files (STEP/IGES) using the form below, or email them directly to info@insidemetalfab.com. Include your target quantity, material specification, tolerance requirements, and any surface finishing needs. We return a detailed quote with DFM feedback within 24-48 hours.

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