China Metal Fabrication Manufacturer & Supplier

Metal Fabrication Service from a Trusted China Factory

One-stop metal fabrication solutions — extrusion, stamping, casting, forging, welding, powder metallurgy, and assembly. From prototype to high-volume production. Get a factory-direct quote within 24 hours.

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✓ No MOQ  ✓ Free DFM review  ✓ NDA on request  ✓ Global shipping

The Problem

Tired of These Metal Fabrication Headaches?

We have heard it all from buyers who switched to us. These are the real pain points that cost you time, money, and sleep.

Poor Quality & Rework

Parts arrive out of spec. Welds crack. Finishes peel. You send them back and lose weeks — again.

Missed Deadlines

Suppliers promise 10 days and deliver in 30. Your production line sits idle. Your customer is upset.

Hidden Costs & Middlemen

Trading companies mark up prices 20–40%. Tooling fees, packaging fees, "surprise" charges show up late.

Multiple Vendors, One Headache

One shop stamps, another welds, a third plates. You coordinate it all — and everyone points fingers.

IP & Design Leaks

You share drawings, and next month your part shows up on Alibaba. No NDA, no traceability.

Slow Quotes & No DFM Help

You wait a week for a quote. Nobody tells you your design will be hard to make — until it is too late.

The fix? One accountable China manufacturer — from quote to dock.

YiguProto is a direct metal fabrication factory in Dongguan, China. We own the processes. We quote fast. We build to print. We ship on time.

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Our Metal Fabrication Service

Seven Core Fabrication Solutions Under One Roof

You send us a drawing. We handle every process in-house — no outsourcing, no finger-pointing. Pick one process, or mix them for a complete assembly.

Metal fabrication at YiguProto China factory — extrusion, stamping, casting, forging, welding, assembly
One-stop metal fabrication at YiguProto's China factory

As a full-service metal fabrication company based in China, we serve buyers across North America, Europe, and Asia who need quality metal parts without the hassle of managing multiple suppliers. Whether you need a simple bracket, a complex welded frame, or a fully finished assembly, our factory team has the equipment and experience to deliver.

  • Factory-direct pricing — no trading company markup
  • Free DFM feedback on every quote, from real engineers
  • Tight tolerances down to ±0.05 mm on critical features
  • One point of contact for all processes and finishes
  • Full inspection reports with material certificates
Get an Instant Quote Talk to an Engineer
Process 01

Metal Extrusion

Aluminum and soft-alloy profiles with consistent cross-sections. Ideal for frames, rails, heatsinks, and structural shapes.

  • Aluminum 6061, 6063, 7075
  • Custom cross-sections up to 200 mm
  • Cut-to-length, drilled, tapped, anodized
Process 02

Metal Stamping

High-speed progressive and compound stamping for brackets, clips, terminals, enclosures, and sheet components.

  • Thickness: 0.1 mm – 6 mm
  • Blanking, bending, deep drawing
  • Low-cost tooling, fast turnaround
Process 03

Casting

Die casting, sand casting, and investment casting for complex geometries in aluminum, zinc, steel, and brass.

  • Die casting: high-volume, tight tolerance
  • Investment casting: fine detail, smooth finish
  • Sand casting: large parts, low tooling cost
Process 04

Forging

Hot and cold forging for high-strength parts that must take heavy loads — gears, shafts, flanges, and fittings.

  • Carbon steel, alloy steel, aluminum, brass
  • Superior grain structure and strength
  • CNC secondary machining available
Process 05

Welding

MIG, TIG, spot, and robotic welding for frames, assemblies, tanks, and structural components. Clean, strong, leak-tested.

  • Certified welders, WPS available
  • Steel, stainless, aluminum welding
  • Grinding and polishing to finish
Process 06

Powder Metallurgy

Sintered metal parts for gears, bushings, bearings, and structural components with complex shapes at low per-piece cost.

  • Iron, copper, stainless steel powder
  • High material utilization, little waste
  • Good for mid-to-high volumes
Process 07

Assembly & Finishing

We put it all together. Mechanical assembly, fastener insertion, riveting, surface finishing, packaging, and drop-shipping.

  • Full turnkey assemblies
  • Powder coating, anodizing, plating, painting
  • Custom packaging and labeling

The Difference

Working with YiguProto vs. a Typical Supplier

Here is what actually changes when you work with a factory-direct China manufacturer instead of a middleman.

⚠️ Typical Supplier / Trading Company

  • Quote takes 3–7 days (if they reply at all)
  • Prices marked up 20–40% over factory cost
  • No in-house engineering — zero DFM feedback
  • Outsources to unknown shops, quality swings
  • One person handles 30 clients — slow responses
  • Blames the factory when something goes wrong
  • No inspection reports, no material certs
  • IP protection? Good luck.

✅ YiguProto — Direct China Factory

  • Quote back within 24 hours, often in hours
  • Factory-direct pricing — you pay real cost
  • Free DFM review from our in-house engineers
  • All processes in our own Dongguan factory
  • Dedicated project manager for every job
  • Single point of accountability from start to end
  • Full QC reports, material certs on request
  • NDA signed before you share any files

Industries

Metal Fabrication Solutions for Every Industry

We make parts for the world's most demanding sectors. Every industry has its own standards — and we know them.

✈️

Aerospace

 🚗

Automotive

 🏥

Medical

 ⚡

New Energy

 🤖

Robotics

 💻

Electronics

 🔬

Semiconductor

 🏭

Industrial Parts

 📡

Communication

 🛒

Consumer Goods

 ⚙️

Machine Building

 ➕

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Materials

Metals We Fabricate Every Day

We stock and source a wide range of metals. Need something not listed? Ask us — we probably work with it.

Aluminum Alloys

  • 6061-T6 — General purpose, weldable
  • 6063 — Extrusions, architectural
  • 5052 — Sheet, corrosion resistant
  • 7075 — High strength, aerospace
  • 2024 — Aircraft, high fatigue

Steel & Stainless Steel

  • Q235 / A36 — Carbon steel, structural
  • 4140 / 4340 — Alloy steel, high strength
  • 304 / 304L — General stainless
  • 316 / 316L — Marine, chemical
  • 17-4 PH — Precipitation hardening

Other Metals

  • Brass (C36000, C26000)
  • Copper (C11000, C101)
  • Bronze (bearing & phosphor)
  • Zinc (Zamak 3, 5 for die cast)
  • Titanium (Gr2, Gr5), Nickel alloys
Browse All Materials →

Why Choose Us

Why 500+ Companies Trust YiguProto for Metal Fabrication

We are not the cheapest shop on the internet. We are the China manufacturer you can actually rely on — month after month, order after order.

12+Years in manufacturing
500+Global customers served
24hAverage quote turnaround
99.2%On-time delivery rate
E

Experience That Shows in Every Part

Our engineers and machinists average 10+ years in metal fabrication. We have run thousands of jobs across every major process. When we spot a problem in your design, we tell you — before you pay for tooling.

E

Engineering Expertise, Not Just Button-Pushing

Every quote is reviewed by a real mechanical engineer. We provide free DFM feedback, material recommendations, and cost-down ideas. We speak your language — not just factory jargon.

A

Authoritative Quality Systems

Our factory runs under ISO 9001 quality management. We use calibrated CMM, calipers, micrometers, and gauges. Mill certificates, inspection reports, and PPAP documentation are available on request.

T

Trust Built on Transparency

We send production photos. We answer questions honestly. We sign NDAs. If a part will be late (rare), we tell you early — not on the due date. That is how we keep customers for years.

"We tried four Chinese suppliers before finding YiguProto. Parts were always late or wrong. With YiguProto, quotes come back the same day, parts ship on time, and quality is consistent. They are our go-to metal fabrication supplier now."

— Procurement Manager, Industrial Equipment Company, USA

Quality Assurance

Every Part Is Checked Before It Ships

Cheap parts are not cheap if you have to sort, rework, or scrap them. Here is how we make sure what ships is what you approved.

✓

Incoming Material Inspection

Every batch of raw material is checked with a spectrometer and cross-referenced to mill certificates before it enters production.

✓

In-Process QC

Operators check parts at every setup change. First-article inspection (FAI) is mandatory before any production run continues.

✓

Dimensional Inspection

CMM, height gauges, pin gauges, thread gauges, and surface roughness testers are used per the control plan.

✓

Final Inspection & Reports

Finished parts go through final random or 100% inspection (per your spec). We provide inspection reports and material certs on request.

✓

Weld & Assembly Checks

Welds are visually inspected per AWS D1.1. Assemblies are checked for fit, function, torque, and leak-tightness when required.

✓

Packaging & Shipping Review

Parts are wrapped, labeled, and packed to prevent damage in transit. We confirm packing lists and shipping marks before the truck leaves.

Capabilities at a Glance

Technical Specifications

Quick reference numbers so you can spec your part with confidence. Need something outside these limits? Ask us — we often can.

CategoryCapability
ProcessesExtrusion, stamping, die casting, sand casting, investment casting, forging, MIG/TIG/spot welding, powder metallurgy, assembly
MaterialsAluminum, steel, stainless steel, brass, copper, bronze, zinc, titanium, nickel alloys
Tolerance±0.05 mm (precision) to ±0.1 mm (standard), per drawing & process
Part SizeFrom 5 mm micro-parts up to 1.5 m fabricated frames/assemblies
Wall ThicknessAs thin as 0.1 mm (stamping) up to 50 mm+ (forged/cut parts)
Surface FinishAs-fabricated, bead blasting, anodizing, powder coating, painting, plating (zinc, nickel, chrome), passivation, polishing, brushing
Quantities1 piece (prototype) → 100,000+ pieces (mass production)
Lead Time3–5 days (simple stamped parts), 5–15 days (typical), 15–25 days (complex tooling / castings / forgings)
File FormatsSTEP, STP, IGES, STL, DWG, DXF, PDF drawings
CertificationsISO 9001 factory; RoHS, REACH compliant materials; PPAP/FAI on request
ShippingDHL/FedEx/UPS express, air freight, sea freight; DAP, DDP, FOB terms

How It Works

From CAD File to Finished Parts — 4 Simple Steps

Getting parts made in China should not be complicated. Here is exactly what happens when you work with us.

1

Send Us Your Design

Upload your CAD files (STEP/STP preferred) through our quote form. Tell us the quantity, material, finish, and any special requirements.

2

Get a Quote in 24 Hours

Our engineers review your design for free. You get an itemized price, lead time, and DFM suggestions — no hidden fees, no fluff.

3

We Make Your Parts

We source material, build tooling (if needed), run production, and perform in-process and final QC in our own factory.

4

We Ship to Your Door

Parts are packed, labeled, and shipped via express, air, or sea. You get tracking, inspection reports, and one point of contact the whole way.

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FAQ

Frequently Asked Questions About Metal Fabrication

Straight answers to the questions buyers ask us every day. Still unsure? Ask an engineer directly.

Metal fabrication is a broad term for cutting, shaping, and joining metal to make finished parts or assemblies. It covers processes like stamping (cutting and bending sheet metal), extrusion (pushing metal through a die to make long profiles), casting (pouring molten metal into a mold), forging (hammering hot metal into shape), welding (melting two pieces together), and assembly (putting multiple parts into a finished product). At YiguProto, we do all of this in one China factory.
Send us your drawings or 3D files (STEP, STP, IGES, or PDF). Most quotes come back within a few hours on business days. The absolute maximum is 24 hours, even for complex assemblies. If we need more info to quote accurately, we will reply with specific questions — not silence.
We offer a full range: metal extrusion, metal stamping, casting (die casting, sand casting, investment casting), forging (hot and cold), welding (MIG, TIG, spot, robotic), powder metallurgy (sintered parts), and full assembly with surface finishing. You can use one process or combine them — we manage the whole project.
We serve aerospace, automotive, medical devices, robotics, electronics, new energy (EV, solar, battery), semiconductor equipment, consumer goods, telecommunications, industrial equipment, and general machinery. Different industries have different standards (e.g., medical requires traceability; aerospace requires tighter QC) — and we tailor our process to match.
We work with aluminum (6061, 6063, 5052, 7075, 2024), carbon steel (Q235, A36, 1018, 4140, 4340), stainless steel (304, 304L, 316, 316L, 17-4 PH), brass (C36000, C26000), copper (C11000), bronze, zinc (Zamak 3/5), titanium (Grade 2, Grade 5), and various nickel alloys. If you need a specific alloy, just ask.
It depends on the process and part size, but we typically hold ±0.1 mm for standard fabrication, and as tight as ±0.05 mm for critical precision features. Stamping dies can hold tighter; castings and forgings are slightly looser in their raw state and are often CNC-machined afterward for critical dimensions. We will discuss tolerance requirements when we review your drawing.
Yes, 100%. Every customer file, drawing, and idea is treated as strictly confidential. We are happy to sign a mutual NDA before you share any sensitive designs. Your files are never shown to other customers, and we never list your parts on public marketplaces.
Absolutely — and it is free with every quote. Our in-house engineers review your design and flag issues that could drive up cost, weaken the part, or cause production delays. We suggest changes (e.g., radius adjustments, wall thickness tweaks, weld access relief) that cut cost and improve quality before you spend money on tooling.
There is no strict MOQ. We support one-off prototypes and sample parts (1–10 pieces), small bridge runs (50–500 pieces), and full production runs of tens or hundreds of thousands of parts per year. Prototyping usually uses soft tooling or CNC; production uses dedicated tooling for lower per-piece cost.
We can make pre-production samples for your approval before full production. Sample cost depends on the process and material (simple stamped samples are cheap; complex castings or forgings require tooling). Sample cost is credited back to you when you place the production order, so the samples are effectively free once you move forward.
Typical lead time is 5–15 business days, depending on the process, complexity, and order quantity. Simple stamped or extruded parts can ship in 3–7 days. Castings and forgings that require new tooling typically take 15–25 days. We always state a clear, realistic lead time on your quote — and we hit it.
Yes. Our China factory is set up for the full range: one-off prototypes for engineers testing a design, small batch runs for startups launching a product, and high-volume production for established companies scaling up. You can start small and grow with the same supplier — no need to re-qualify a new shop later.
Our factory operates under ISO 9001 quality management. On request we can provide: material mill certificates (with chemical composition and mechanical properties), first-article inspection (FAI) reports, full dimensional inspection reports, PPAP documentation, RoHS/REACH compliance certificates, and weld procedure specifications (WPS) for welded assemblies.
We offer a wide range: as-fabricated (raw), bead/sand blasting, tumbling, brushing, polishing, anodizing (Type II, Type III hard coat, various colors), powder coating (any RAL color), wet painting, electroplating (zinc, nickel, chrome, tin), electroless nickel plating, black oxide, passivation, alodine/chem film, and electrophoresis. Just tell us what look and protection level you need.
For new customers, standard terms are 50% deposit to start production, 50% balance before shipment (we send photos and inspection data first). We accept bank wire (T/T), PayPal for small amounts, and trade-assurance options. Shipping is via DHL/FedEx/UPS (small parcels, 3–5 days), air freight (larger shipments, 5–7 days), or sea freight (25–35 days, most economical). We can ship DAP, DDP, or FOB Shenzhen/Hong Kong.
It is simple. Click the "Get a Free Quote" button below, upload your CAD files (STEP/STP works best), and tell us the quantity, material, surface finish, and any other requirements. You will hear back from us within 24 hours with a clear price, lead time, and DFM feedback — no pressure, no sales calls unless you want one.

Ready to Work with a Reliable China Metal Fabrication Manufacturer?

Send your drawings today. Get a factory-direct quote with free DFM feedback within 24 hours. No MOQ. No middleman markup. No headaches.

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