China Supro MFG

metal boxes

A full range of custom metal enclosure solutions

Meet all functional requirements, standards and aesthetics.

Industry Enclosure

Electronic Enclosure

PCB Enclosures

Junction Box Enclosures

metal boxes manufacturer

Supro MFG is an industry-leading custom metal enclosure manufacturer in China, actively providing a full range of custom metal enclosures manufacturing solutions according to various industry applications, environments, industry standards and functional requirements.

Whether it’s small aluminum enclosures, extruded aluminum enclosures, stainless steel enclosures, carbon steel cabinets, die-cast junction boxes enclosures, or sheet metal enclosures, we have 28 years of experience ensuring the delivery of high-quality, close-tolerance metal enclosures.

custom metal enclosure manufacturer

Custom metal enclosures manufacturing

Supro MFG provides a wide range of custom metal enclosure manufacturing solutions to help our customers save time, optimize product performance and enhance cost-effectiveness by improving product quality and efficiency, better catering to buyers from around the world and their project operations.

sheet metal enclosures

die casting enclosures

Extrusion enclosures

Deep Drawn enclosures

CNC Machining enclosures

Injection Molding enclosures

metal enclosures fabrication services

With our extensive experience in custom sheet metal fabrication and our advanced equipment.

We can handle precision sheet metal fabrication projects for any industry.

metal enclosure laser cutting

metal enclosure bending

metal enclosure welding fabrication

metal enclosure Surface pretreatment

metal enclosure fittings assembly

metal enclosure surface treatment

for your industry
Metal enclosures Fabrication

indoor metal enclosures

outdoor metal enclosures

  • Server and data center cabinets
  • Computer and network cabinets and enclosures
  •  Electrical cabinets, control boxes and enclosures
  • Equipment cabinets and enclosures
  • Mild Steel Enclosure With Window And Handle
  • Powder Coated Mild Steel Junction Box
  • Mild Steel Wall Mount Electrical Enclosure
  • Mild Steel Standing Enclosure
  • Mild Steel NEMA 4X Electrical Enclosure
  • Mild Steel Table Desk Electrical Enclosure
  • Car Wash Vacuum Unit Enclosures
  • Meter Control Panel Enclosures
  • Vacuum Hose Hanger
  • Programmable Token Vendor Enclosure
  • Motor Control Center Enclosure
  • Custom Signage and Architectural Elements
  • Indoor Use Stainless Steel Wall Mount Electrical Enclosure
  • Stainless Steel Wall Mount Enclosure
  • 316 Stainless Steel Junction Box
  • stainless steel electrical enclosures
  • free-standing stainless steel electrical enclosures,
  • floor mount stainless steel electrical enclosures,
  • wall mount stainless steel electrical enclosures,
  • stainless steel electrical enclosures
  • stainless steel modular enclosures.

China Supro-MFG

Custom Metal Enclosure Design Services

Whether your next project is a metal enclosure project for a precision instrument or a simple storage container, industry-leading design and manufacturing experience is an essential element of the design effort.

Supro MFG provides active custom metal enclosure design support services according to the custom enclosure’s application scenarios, functional requirements, and stringent acceptance criteria to ensure that products meet customer product expectations.

Supro MFG has an experienced team of design experts who will create various product design and manufacturing solutions through CAD/Solidworks, and aesthetic designs for various application scenarios. You can easily choose the most ideal result.

  • High-performance materials that meet the application environment.
  • Structure and components to meet functional requirements.
  • Establish excellent visual aesthetic appearance.
  • Optimize the cost competitive advantage of product manufacturing.
custom metal enclosure manufacturer

Custom metal Enclosure Material Solution

Supro MFG will choose the right materials, accessories, manufacturing process, etc. according to your needs and application. At the beginning of custom metal enclosure projects, all fabrication details will get your permission. Helping you to complete your project with the easiest and most efficient way.

Aluminum alloy


stainless steel


Carbon Steel

Galvanized Steel/Painted steel

Accessories assembly & surface aesthetics

Custom Metal enclosures Fabrication

Flexible Accessories Assembly Services

In order to meet better functional custom metal enclosure projects, Supro MFG provides a full range of customized accessories and installation services. Whether your project is used in electronics, electrical appliances, industrial, medical and other industries, we can match your enclosure project with high Quality hardware, and installed correctly: hinges, rails, handles, shutters, casters, rain covers, standard/non-standard fasteners, locks, wall brackets, dividers, sponge seals, hydraulic springs, pneumatic struts, etc. .
We provide competitive value-added services, you can provide these accessories, we can also help to purchase at the factory price, provide after-sales warranty and replacement services.

custom stainless steel control cabinet
sheet metal bending enclosures parts

Aesthetics Surface Finishing Services

Metal enclosures are usually used as outer protection and decoration. While protecting the internal precision instruments to the greatest extent, perfect visual aesthetics is an important role required by the project.
We provide a series of services such as aluminum alloy anodizing, stainless steel electropolishing, physical spraying, polishing, wire drawing, sandblasting, screen printing, laser engraving, UV spraying, etc.
Customizable color settings,
It can effectively enhance the anti-corrosion, anti-oxidation, and increase the strength of the material, and can also achieve the effect of improving the appearance.


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.

Get instant ex-factory price quotation.

If you only have an idea or an old sample,Let us know.

with photo or video and get our quotation and manufacturing solutions.

  • Product design drawings or 3D model files.
  • Material standards and appearance requirements.
  • Product quantity demand.
  • Industry standards in the application field.
  • Functional requirements