Top 8 Sheet Metal Fabrication Manufacturers in China

I used to think choosing a sheet metal manufacturer was simple.

Get a fast quote, compare prices, and pick the cheapest one. What could go wrong?

Well—plenty.

One project came back with sharp burrs, warped corners, and holes that didn’t line up. Production stopped. I had to call the client and admit the delay was on my end. That week taught me a hard lesson: not all manufacturers are the same.

Since then, I’ve visited factories, compared quality firsthand, and tested parts from suppliers across China. Some delivered on time and to spec. Others didn’t make it past the first order.

If you’re trying to avoid costly mistakes like I made, this article is for you.

I’ll walk you through 8 manufacturers in China that have proven reliable on real jobs. You’ll learn what they offer, what they’re good at, and what kind of projects they’re a fit for.

By the end, you won’t need to guess—you’ll know how to pick the right supplier for your next build.

Let’s get started!

Quick Comparison Chart

Before we dive into the details, here’s a quick glance at each manufacturer. This table gives you a snapshot of their strengths so you can scan the list with ease.

Manufacturer	Year Founded	Location	Certifications	Core Services	Notable Strengths
MachMaster	2010	Xiamen, Fujian, China	ISO 9001	CNC machining, sheet metal, surface finish	Beautiful precision, flexible production
Yijin Hardware	2003	Shenzhen, China	ISO 9001, IATF 16949	CNC machining, sheet metal, coatings	Strong in tight-tolerance, medium-to-large runs
RapidDirect	2009	Shenzhen, China	ISO 9001	Sheet metal, CNC, fast quoting	Fastest digital platform and global access
Tuofa CNC Machining	2006	Shenzhen, China	ISO 9001, IATF 16949	CNC machining, sheet metal, welding	High precision for complex, multi-step parts
Komaspec	2005	Guangzhou, China	ISO 9001	Laser cutting, welding, finishing	Best for structured, medium-volume production
DEK	2002	Shenzhen, China	ISO 9001	Sheet metal, CNC, finishing	Reliable speed and accuracy for repeat jobs
3ERP	2010	Zhongshan, China	ISO 9001:2015	Prototyping, CNC, low-volume production	Fast lead times for small batch builds
Komacut	2017	Guangzhou, China	ISO 9001	Sheet metal, digital quoting, finishing	User-friendly online ordering system

Now that you’ve seen the big picture, let’s look at what each manufacturer offers in more detail.

1. MachMaster

A few years ago, I was managing a product launch with a tight schedule. I needed custom aluminum brackets—precise, clean, and ready fast. A colleague suggested MachMaster. They handled everything from the drawings to the final parts, without delay. The results were smooth, and I’ve worked with them ever since.

MachMaster was founded in 2010 and is located at 202 Tianfeng Road, Xiamen, Fujian, China. Their facility handles CNC machining, sheet metal fabrication, and surface finishing. With a team of over 150 employees, they serve global clients in electronics, medical, and automation.

Product Range

• Core product categories: Sheet metal parts, brackets, housings, panels
• CNC machined parts: High-precision turned and milled components
• Injection molded parts: Small- to mid-batch plastic parts for various industries
• Surface finishes: Anodizing, plating, powder coating, sandblasting
• Rapid prototyping: Quick-turn test parts before production

Research & Development (R&D)

• In-house team: Supports design-for-manufacturing (DFM) from concept to production
• Prototyping process: Fast feedback and short development loops
• CAD support: Works with 2D/3D files to refine custom parts
• Design flexibility: Open to revisions and part improvements
• Production readiness: Focuses on reducing time and cost without losing accuracy

Sustainability & Ethical Practices

• Raw material sourcing: Ethical suppliers for metals and plastics
• Energy efficiency: Modern equipment helps reduce power use
• Waste reduction: Scrap materials are sorted and recycled
• Coating options: Uses low-VOC and eco-safe finishing methods
• Local jobs: Provides factory training and long-term roles for workers

Final Verdict

MachMaster is a great fit for teams that need precise parts, fast prototyping, and responsive support throughout production. You’ll benefit most if you’re a startup or product developer working on custom designs.

2. Yijin Hardware Co., Ltd.

If you’ve ever stressed over a supplier messing up your specs, you’re not alone. I had a project that needed tight-tolerance enclosures on a short deadline. A friend suggested Yijin. They shipped fast, the parts fit like a glove, and I didn’t lose sleep over missed tolerances.

Founded in 2003, Yijin Hardware is based in Shenzhen, China. They run a 25,000 m² facility with over 100 employees. Their main markets include automotive, aerospace, medical, and electronics.

Product Range

• Core product categories: Sheet metal brackets, housings, and enclosures
• High-precision CNC parts: For electronics, aerospace, and medical devices
• Assembly services: Partial or complete metal subassemblies
• Surface finishes: Powder coating, anodizing, plating
• Materials supported: Aluminum, steel, stainless steel, copper, titanium

Research & Development (R&D)

• In-house R&D team: Helps refine designs before production
• DFM reviews: Flags issues that may affect part quality or cost
• Full QA workflow: Inspection at every production step
• Rapid prototyping: Useful when testing a new product
• Tooling support: Helps create custom fixtures or dies if needed

Sustainability & Ethical Practices

• Verified suppliers: Sources certified and traceable raw materials
• Low-emission finishing: Uses safer, modern surface coatings
• Metal recycling: All waste metals are sorted and reused
• Energy-saving machinery: Reduces power use across operations
• Factory safety: Meets current labor and occupational safety standards

Final Verdict

Yijin Hardware is ideal for buyers needing precise, repeatable results in medium- to high-volume runs. However, if your project requires low-cost, low-complexity parts, their advanced setup may be more than you need.

3. RapidDirect

I needed laser-cut covers on a tight schedule. Waiting days for quotes wasn’t an option. I uploaded my files to RapidDirect, and within minutes, I had pricing, lead times, and finishing options. No emails. No delays. The parts came out smooth and clean, right out of the box.

RapidDirect was founded in 2009 and is based in Shenzhen, China. With over 150 employees, they support global clients in robotics, electronics, aerospace, and more through their fast, online system.

Product Range

• Core product categories: Sheet metal parts, CNC machined components, prototypes
• Specialized services: Online instant quoting and DFM (Design for Manufacturability) feedback
• Best-selling products: Custom brackets, enclosures, and metal frames
• End-use parts: Functional components for electronics and industrial machines
• Unique selling points: Fast online quoting system and wide material selection

Research & Development (R&D)

• In-house R&D: Supports software development and manufacturing process refinement
• Innovation process: Focused on reducing turnaround time through automation
• Testing procedures: Includes file checks and dimensional reviews
• Adaptability: Adjusts quickly to CAD revisions and volume changes
• Notable features: Smart quoting engine with built-in manufacturability checks

Sustainability & Ethical Practices

• Raw materials: Sourced from audited, compliant vendors
• Energy-efficient production: Uses modern, lower-power equipment
• Waste handling: Recycles scrap metal and reuses packaging
• Carbon footprint: Reduced through smart logistics and digital workflows
• CSR efforts: Operates with labor compliance and fair wage practices

Final Verdict

RapidDirect is a great fit if you want fast quoting, digital file uploads, and consistent production without delays. However, if you prefer hands-on coordination or in-person factory visits, you may want a more traditional shop.

4. Tuofa CNC Machining

If you need complex parts done right the first time, Tuofa is a name to know. I once ordered machined housings with threads and tight tolerances. Their team flagged a small issue before production, fixed it fast, and delivered smooth, accurate parts. No rework. No stress.

Founded in 2006, Tuofa CNC Machining is based in Shenzhen, China. With over 100 employees and global clients, they serve the aerospace, medical, and automotive industries through high-precision machining and sheet metal services.

Product Range

• Core product categories: CNC milled parts, turned parts, sheet metal components
• Specialized services: Multi-axis machining, tapping, and threading
• Best-selling products: Custom brackets, mechanical housings, and precision shafts
• Surface finishes: Anodizing, sandblasting, powder coating, nickel plating
• Unique selling points: One-stop shop for both CNC machining and sheet metal work

Research & Development (R&D)

• In-house engineers: Help with design-for-manufacturing (DFM)
• Fast prototype testing: Short cycles for early-stage product development
• Custom file support: Works with your CAD models directly
• Testing methods: Measures parts with CMM (Coordinate Measuring Machines)
• Adaptability: Adjusts processes based on materials and complexity

Sustainability & Ethical Practices

• Material sourcing: Partners with certified suppliers for metals and plastics
• Energy use: Relies on modern CNC machines with low energy draw
• Waste control: Sorts and recycles metal chips and plastic scraps
• Chemical handling: Follows safe practices for surface treatment disposal
• Worker safety: Meets national labor and equipment safety standards

Final Verdict

Tuofa is a smart pick if you’re building high-tolerance parts that need both machining and sheet metal processing. However, due to their focus on precision, they may not be the fastest option for simple or low-cost projects.

5. Komaspec

“This job’s too detailed,” I thought. Multiple welds. Surface coating. Tight timeline. I needed someone who could handle it all without chaos. A colleague said, “Try Komaspec—they’re organized.” They were right. The process was clear. The team walked me through each step. I didn’t feel left in the dark.

Founded in 2005, Komaspec is based in Guangzhou, China. With over 250 employees and modern equipment, they serve global clients with full-service sheet metal fabrication and assembly.

Product Range

• Core product categories: Sheet metal enclosures, brackets, tubing frames, and assemblies
• Fabrication services: Laser cutting, stamping, CNC bending, TIG/MIG/robotic welding
• Surface finishes: Powder coating, zinc plating, anodizing
• Mechanical assembly: Combines multiple components into full products
• Unique selling points: Full transparency with production tracking and in-house quality checks

Research & Development (R&D)

• In-house engineers: Help with DFM (Design for Manufacturability) reviews
• ERP integration: Ties design and production into one system
• Prototype testing: Offers fast turnaround on pilot runs
• Quality validation: Uses inspection tools and real-time monitoring
• Smart manufacturing: Runs on Industry 4.0 systems for better efficiency

Sustainability & Ethical Practices

• Raw material sourcing: Works with qualified, traceable suppliers
• Energy use: Operates newer equipment with energy-saving features
• Waste reduction: Tracks and recycles off-cuts and powder coating waste
• Logistics efficiency: Plans shipping to lower fuel use
• Social responsibility: Supports fair wages and workplace safety

Final Verdict

Komaspec is a great fit if you need consistent medium-volume production with full process visibility. However, for very small batch runs or projects that require hand-holding, their system may feel more structured than flexible.

6. DEK

If you’re working with tight tolerances and short lead times, DEK is a name worth knowing. I remember a time I needed 100+ aluminum covers, laser-cut, bent, and anodized. I reached out to DEK. They handled everything—quote, file checks, delivery—fast. When I opened the box, every part was identical. That kind of consistency saves time and trust.

Founded in 2002, DEK is based in Shenzhen, China. With over 150 employees, they specialize in sheet metal, CNC machining, and precision manufacturing. Their reputation is built on speed, quality, and customer service that feels personal—even at scale

Product Range

• Core product categories: Sheet metal covers, brackets, heat sinks, CNC machined parts
• Fabrication services: Laser cutting, bending, welding, tapping, and punching
• Surface finishes: Anodizing, powder coating, nickel plating, brushing
• Prototypes to production: Supports both single-part orders and large batches
• Unique selling points: Fast turnaround, tight tolerances, and wide material options

Research & Development (R&D)

• In-house engineers: Help improve your designs with DFM feedback
• Quick iterations: Useful for early-stage testing and modifications
• Testing tools: Uses calipers, gauges, and visual checks on each part
• Flexible workflows: Can adjust to changes in volume or specs quickly
• Production planning: Efficient systems for managing orders and delivery

Sustainability & Ethical Practices

• Material sourcing: Uses certified suppliers for metals and coatings
• Power usage: Runs energy-efficient machines to reduce waste
• Recycling: Separates and recycles leftover sheet and scrap material
• Packaging: Ships with recyclable and minimal material when possible
• Workplace standards: Complies with labor laws and clean facility practices

Final Verdict

DEK is a great option if you need precision sheet metal parts fast, with full control over finishes and form. However, they’re best suited for repeat or technical jobs—not one-off artistic pieces or soft materials.

7. 3ERP

If you’re trying to get a prototype made fast, 3ERP can save you time and stress. I had a client who needed a metal prototype—simple in shape but had tight tolerances. We were running late. I sent the file to 3ERP and got a quote within hours. Parts arrived three days later. No issues, no drama. That speed kept our project on track.

Founded in 2010, 3ERP is based in Zhongshan, China. With around 100 employees, they specialize in rapid prototyping, CNC machining, and low-volume production. Their team supports industries like automotive, aerospace, consumer goods, and medical devices.

Product Range

• Core product categories: CNC machined prototypes, sheet metal parts, plastic components
• Prototype-focused services: Short runs of 1 to 1000 parts
• Materials supported: Aluminum, steel, ABS, POM, nylon, and more
• Surface finishes: Sandblasting, anodizing, powder coating, chrome plating
• Unique selling points: Speed, accuracy, and flexibility for small batch runs

Research & Development (R&D)

• In-house support: Offers design review and feedback before production
• CAD file handling: Accepts most major formats (STEP, IGES, STL)
• Fast testing cycles: Can deliver parts in as little as 3 days
• Dimensional checks: Uses calipers and inspection tools to verify specs
• Process flexibility: Easily switches between metal and plastic projects

Sustainability & Ethical Practices

• Material waste: Minimizes offcuts and recycles machining scraps
• Power savings: Runs efficient CNC machines during off-peak hours
• Safe finishing: Offers low-VOC paints and non-toxic coatings
• Eco packaging: Uses recyclable cartons and filler when shipping
• Labor standards: Follows China’s workplace and safety regulations

Final Verdict

3ERP is a great fit if you’re prototyping or launching short-run products and need parts fast without quality drops. However, they focus on low- to mid-volume work, so they may not scale well for mass production needs.

8. Komacut

If you’ve ever wished ordering custom metal parts was as easy as online shopping, you’ll like working with Komacut. I tried their platform during a rush job. Uploaded files. Selected finishes. Got a quote in under five minutes. It felt modern, quick, and honestly—kind of fun. The parts were clean and well-packed.

Founded in 2017, Komacut is based in Guangzhou, China. They’re a digital-first sheet metal fabrication service and a sister brand of Komaspec. With a streamlined platform and in-house production, they serve customers across electronics, industrial design, and automotive.

Product Range

• Core product categories: Sheet metal brackets, covers, panels, and frame parts
• Digital services: Instant quoting, live DFM checks, and order tracking
• Materials available: Aluminum, cold-rolled steel, stainless steel
• Surface finishes: Powder coating, e-coating, zinc plating, passivation
• Unique selling points: Fully online process and high consistency in part quality

Research & Development (R&D)

• Integrated file checks: Software reviews your CAD files for manufacturability
• Quick sample turnaround: Useful for testing fit and function
• Tooling support: Helps plan efficient nesting and laser paths
• Order analysis: Tracks issues or delays and improves future runs
• Built-in process control: Aligns quoting with factory floor schedules

Sustainability & Ethical Practices

• Certified sourcing: Uses compliant suppliers for metal stock
• Smart planning: Cuts waste by nesting parts efficiently on sheet stock
• Packaging: Ships with recyclable cartons and minimized filler
• Low-impact coatings: Offers finishes with lower emissions
• Employee training: Promotes safe handling and lean production practices

Final Verdict

Komacut is ideal if you want an easy-to-use online system for ordering precision sheet metal parts. However, for highly custom or non-standard projects, their automated setup may be less flexible than a traditional shop.

Conclusion

I started this journey unsure which manufacturer to trust. Maybe you felt the same. But now, you’ve seen the facts, the stories, and the strengths of 8 real companies in China.

You know what they do, how they work, and where they shine.

Whether you’re starting a new project or growing a product line—this guide gives you clarity.

Why wait? You deserve a supplier that works as hard as you do.

Contact us today to get started!