Precision Engineering for Global OEMs
Custom Metal Fabrication Services in China
From rapid prototyping to high-volume production, Supro MFG delivers one-stop precision metal fabrication with ISO-certified quality. Reduce your lead times and production costs with our expert DFM support.
- 1-3 day Rapid Prototyping & Agile Supply Chain Delivery.
- On-time delivery of high quality product commitments.
- Extensive Material Selection & Industrial-Grade Finishing.
- Direct-from-Factory Pricing & Transparent Costing.
- ISO 9001-2015 / IATF 16949:2016 certified system.
- Integrated Assembly: Delivering finished, ready-to-use products, not just components.
Rapid Prototypes, DFM Optimization, On-Time Delivery, Real Manufacturer Quote.
ISO 9001-2015
Real Manufacturer Quote
On-Time Delivery
Precision Metal Fabrication Services in China | Custom OEM Solutions & Rapid Prototyping
Your Strategic Partner for Precision Metal Fabrication
At Supro MFG (Supro Manufacturing Co., Ltd.), we don’t just manufacture parts; we engineer reliability. As a leading China metal fabrication factory, we bridge the gap between complex design and cost-effective production. By leveraging our ISO 9001:2015 & IATF 16949 certified facilities and a seasoned engineering team, we provide 3,000+ global clients with unparalleled custom metal fabrication services—direct from the source with transparent, manufacturer-level pricing.
We specialize in the high-quality manufacturing and assembly of custom metal parts, with processing capabilities encompassing: sheet metal fabrication, metal stamping, CNC machining, laser cutting, metal welding, metal spinning, deep drawing, aluminum extrusion, die casting, as well as customized finished product assembly and surface treatment services.
From concept prototypes to mass production,
Supro MFG is your most reliable partner and you will benefit from our manufacturing services.
DFM Analysis
With the professional technical knowledge and rich manufacturing experience of the engineer team, we combine various manufacturing processes for design feasibility manufacturing analysis, optimize product design, and take advantage of low-cost manufacturing.
Rapid Prototyping
Regarding rapid prototyping, we can demonstrate efficient manufacturing response. Rapidly validate the soundness of your product design in 1-3 days at a cost-effective low cost to help you optimize and iterate your product design.
small batch production
Validate designs faster with our specialized low-volume metal fabrication services. From complex prototypes to initial market batches, we offer flexible tooling and precision engineering without heavy MOQ burdens.
Precision metal fabrication services for all industries
Extensive custom metal fabrication capabilities
Explore our proven track record in manufacturing high-tolerance custom metal enclosures, precision brackets, and industrial cabinets. From structural metal frames to intricate custom metal panels, we combine advanced sheet metal fabrication with rigorous ISO-certified quality control to deliver durable, mission-critical components for global OEMs.
Custom metal boxes
Custom metal cabinets
Custom metal bracket
Custom metal water tank
Custom metal frame
Custom metal structure
Custom metal Shelves
Custom metal enclosure
Custom metal housing
One-Stop Contract Manufacturing Services
Full range of
Custom metal fabrication capabilities
Supro Manufacturing Co., Ltd. is a custom metal fabrication company established in 2004. With extensive manufacturing experience, a robust technical team, and comprehensive manufacturing resources, we have provided one-stop custom metal parts manufacturing solutions to over 3,000 enterprises and entrepreneurs worldwide.
We specialize in the high-quality manufacturing and assembly of custom metal parts, with processing capabilities encompassing: sheet metal fabrication, metal stamping, CNC machining, laser cutting, metal welding, metal spinning, deep drawing, aluminum extrusion, die casting, as well as customized finished product assembly and surface treatment services.
As an industry-leading custom metal fabricator, we guarantee on-time project delivery across diverse product categories: energy storage battery enclosures, power control cabinets, CNC control panels, sealed electrical enclosures, medical cabinets, and industrial water tanks. From product design and rapid prototyping to mass production, we deliver expert technical support and exceptional quality. Our competitively priced manufacturer's direct quotes ensure significant cost savings.
Overall Team Staff
Projects Case
Total Factory Area
Global Buyers Served
One-Stop Solution for Custom Metal Parts
Comprehensive Metal Fabrication Services
Looking for reliable metal fabrication companies?
Supro MFG offers one-stop custom metal fabrication, laser cutting, and CNC machining. Expert DFM, high precision, and fast global shipping.
Sheet Metal Fabrication Services
Aluminum Extrusion Services
Precision Metal Stamping
Metal Welding Fabrication
CNC Machining Services
Laser Cutting Services
Metal Spinning Services
Deep Drawing Stamping Services
metal die casting Services
Worried about coordinating multiple suppliers?
Why Choose SUPRO MFG
We eliminate that risk with integrated metal fabrication services—laser cutting, CNC bending, welding, machining, powder coating, and assembly all in one facility. This means single-point quality accountability, consistent tolerances, and fewer supply chain disruptions
Industry-Leading Technology
Over 18 years of experience in custom metal fabrication parts services, with extensive technical knowledge and case studies.
Advanced Real Factory
Over 2,000㎡ factory is located in the outskirts of Shanghai, with advanced equipment ready to start production.
Instant Real Factory Quote
All quotes are from our engineering team and are based on real metal fabrication factory costs in China.
24H*7 Online Sale Services
Professional English team 24H*7 online to provide you with sales services, you can understand the product manufacturing situation at any time.
Low-Cost Manufacturing Operation
All manufacturing processes are carried out in the in-house factory, avoiding waste, completing all work efficiently and saving costs.
High Quality Product Supply
We refuse to cut corners, so the raw materials and processes are traceable and follow the departure of the goods.
On-Time Delivery
We keep the promised delivery time and send the products to the customers in time, 93% of the customers' positive feedback.
Fast Turnaround Operation
Start production runs now and complete all tasks quickly, including: rapid prototyping and low-volume manufacturing.
Our engineers help you reduce costs and improve part performance before manufacturing.
Metal Fabrication Services Tailored to Your Industry
Supro MFG is a premier China metal fabrication company offering precision sheet metal fabrication, CNC machining, and stamping. ISO certified, 24h quotes, and DFM support for global procurement managers.
We don't just manufacture, we optimize.
Free DFM Analysis for Optimized Production
At Supro MFG, our engineers provide complimentary Design for Manufacturing (DFM) analysis on every inquiry. We rigorously review your CAD files to identify potential production risks, suggest material optimizations, and ensure your parts meet the tightest tolerances. By resolving feasibility issues early, we eliminate costly redesigns and shorten lead times for your custom metal fabrication projects. Leverage our deep expertise in precision metal fabrication to transform your design into a cost-effective, high-quality reality. Submit your blueprints today for a professional engineering review.
Expert DFM Analysis: Bridging the Gap Between Design and Reality
We don't just manufacture, we optimize.
No MOQ & High-Volume Scalability
Stop worrying about order minimums slowing down your R&D. We offer a No-MOQ policy to support your initial prototyping and bridge-to-production phases with ease. As your project scales, our metal fabrication factory seamlessly transitions to high-volume manufacturing without compromising dimensional stability or quality.
Prototypes in 3-5 days, mass production in 2-4 weeks.
Rapid prototype Turnaround & Reliable Lead Times
Accelerate your R&D with our 3-5 day precision metal fabrication prototyping. We eliminate production bottlenecks through streamlined workflows and real-time project tracking. From initial CAD to final delivery, our china metal fabrication team ensures tight tolerances and on-time shipment, keeping your project schedule on track and your supply chain resilient.
All customer drawings and designs are treated as confidential
Strict IP Protection & NDA Signed Before Quoting
We treat your engineering prints with absolute confidentiality. To safeguard your proprietary designs, we sign NDAs before reviewing any technical data. As a trusted oem metal fabrication partner, we ensure rigorous internal data security, protecting your IP throughout the entire custom metal fabrication process from prototype to production.
Reliable IP Protection: NDAs Prior to Quote
Are you looking for reliable & cost-effective
Industry-leading metal fabrication manufacturer
More than 150,000 OEM metal fabrication products delivered to 5,000+ global buyers.
And benefit from it!
using high quality materials
for your custom metal fabrication projects
To provide the most efficient custom metal fabrication services, we maintain an extensive in-house raw material warehouse, ensuring high-quality metal materials are readily available for your projects.
201 | 303 | 304 | 316 | 316L | 416 | 420 | 430 | 440c | 301 | 17-4 | 15-5 | 18-8
6061 | 5052 | 6063 | 7075 | 7050 | 2024
C101 | C260 | C110| C360 | C932
1018 | 4130 | 4140 | A36 | Q235 | Q255 | Q275 | Q355B
1045 | O1 | A2 | A3 | D2 | S7 | H13 | Other
Lost Wax Casting | Die Casting | Sand Casting
ABS | Nylon | PEEK | PTFE | PC | POM | PPS | Other
Grade 1 | Grade 2 | Grade 5 (Ti-6Al-4V) | Grade 23
Strict quality control Process, you don't have to take any risk.
ISO 9001:2015 Certified – Quality You Can Verify
At Supro MFG, we understand that dimensional accuracy is non-negotiable for precision metal fabrication. Our quality management system utilizes a full suite of metrology tools, including CMM (Coordinate Measuring Machines), optical comparators, and ultrasonic thickness gauges, ensuring every feature meets your GD&T specifications.
including: raw material inspection, mold inspection, equipment inspection, process sampling, packaging inspection and final inspection, we can undertake QA (Quality Assurance) of products to ensure that they meet the necessary tolerances and quality standards.
Quality Control Objectives
- Raw Material Validation
- First Article Inspection (FAI)
- In-Process Monitoring (IPQC)
- Precision Metrology
- Surface Finish Verification
- Final Pre-Shipment Audit
Quality Control Documents
First article inspection report
First article inspection verification
Receiving inspection
Calibration database
Corrective actions
Over 200 active projects delivered to 15+ countries. 98% on-time delivery rate. Our customers include engineering firms, industrial OEMs, and distributors who demand consistent quality and supply chain transparency. We reduce your sourcing risk with full material traceability (EN 10204 3.1/3.2) and third-party inspection readiness.
A part is only as good as its finish.
High-Performance Surface Finishing: Aesthetics Meets Durability
At Supro MFG, we understand that professional custom metal fabrication requires more than just structural integrity—it demands surface treatments that withstand harsh environments and strict aesthetic standards.
Our integrated finishing shop provides a seamless transition from the production line to the final coating, ensuring tight control over lead times and quality.
Engineering Versatility: Precision Components for Demanding Industries
From aerospace-grade brackets to NEMA-rated industrial enclosures, our custom metal fabrication solutions drive innovation across global sectors. We bridge the gap between complex blueprints and functional reality, delivering high-performance precision metal fabrication tailored to the rigid durability and compliance standards of your specific field.
- Automotive
- Medical Equipment
- Semiconductor
- Energy
- Robotics
- Constructions
- City Infrastructure
- Food & pharmaceutical equipment
Customer recognition of us
Ensure high quality products, on time delivery, customer satisfaction, is the purpose of our service.
More Case Studies
Supro MFG actively helps customers from design and prototype to mass production of high quality custom metal fabrication services.
F.A.Q
Supro MFG takes buyers' requests and inspirations very seriously. A fantastic idea will ignite our work and actively respond to all demanding requirements and complex product designs.
Supro MFG is a professional Chinese sheet metal manufacturer, we specialize in the design and manufacture of custom sheet metal parts fabrication and Sheet metal Prototype, ISO 9001-2015 certified, providing a full range of sheet metal parts fabrication solutions and technical support .
We are not a trader, all products are done in our in-house factory, we have a reliable supplier of surface treatment, heat treatment, and standard parts to support us, and we can provide you with economical sheet metal manufacturers ex-works prices.
We have our own sheet metal fabrication factory, welding workshop, laser cutting workshop, and precision CNC Machining workshop, with a total area of more than 3000 square meters, with 12 technical engineers, 36 skilled workers, 6 quality engineers, and a professional English sales team.
Of course, we keep all the customer's information confidential, sign a non-disclosure agreement, our factory will not allow unrelated personnel to enter without authorization, your product design and patented technology will be protected by us.
Yes, we have rich manufacturing experience and technical knowledge, can draw professional design files (including: STL/STEP/IGES/PDF/CAD, etc.) according to your ideas, and provide you with free manufacturability solutions. Actively help you optimize product design, reduce costs, and make your product design more dynamic in the sales market.
From raw materials to finished packaging, we will provide you with reliable quality inspection reports and photos at any time. If you need an authoritative third-party inspection report, we can also actively cooperate to ensure that you will receive high-quality products.
T/T, Paypal western union, L/C, and other channels you suggest (contact us for negotiation).
Yes, we can provide system documentation for PPAP level3.
Our quotations are all factory quotations from manufacturers, and all manufacturing costs and labor costs are traceable. We all use the raw materials of authoritative manufacturer brands, refuse to cut corners, and all products are subject to our quality control.
While there are plenty of small businesses that offer you a very low price, the quality can be at risk.
What your project needs more is the guarantee of high-quality products and on-time delivery, not high-risk.
We do not set a minimum order quantity. Whether you need a small amount of prototypes or large quantities, we will treat you equally and provide you with a full range of manufacturing services and technical support.
We will develop a detailed production plan, every point in time will be practically verified, and all processes are under our monitoring to ensure on-time delivery of high-quality products. (Except for the influence of force majeure factors)
Once there is a signal of delay, we will organize more production capacity to ensure on-time delivery.
Blogs & News
online custom metal fabrication parts
Only 4 steps
Contact our experts team and experience the efficiency and economic benefits of digital metal fabrication services.
Upload Design Files
STL , STEP (.stp), IGES (.igs), (.ZIP), or PDF.
Also be a sample or an idea
Quote & Design Analysis
Instant factory quotes and DfM reports, the most reasonable solution.
Manufacturing Begins
Digital processes can initiate order tasks within 24 hours.
On-Time Delivery
Keeping delivery promises, approved by 3000+ Global Company buyers.