Custom Sheet Metal Fabrication Services

MSTFAB, the trading name of Guangzhou Maisituo Sheet Metal Manufacturing Co., Ltd., manufactures build-to-print sheet metal enclosures, cabinets, brackets, panels, chassis and welded assemblies in China. We support overseas OEM buyers from sheet metal DFM review to laser cutting, CNC bending, welding, finishing-process coordination, inspection and export packaging. Buyers reviewing the Guangzhou manufacturing source can use our China sheet metal fabrication manufacturer scope guide for drawing inputs, project-specific commercial assumptions and responsibility boundaries.

Build-to-print OEM metal parts
Prototype, FAI and repeat production
ISO 9001:2015 quality management

Upload Drawings
Explore Capabilities

23+Years serving OEM projects

5,000 sqmGuangzhou production floor

CoordinatedFabrication, finishing route and packing

Export-readyQC records and protective packing

Built for sourcing teams

Set the checks before your sheet metal parts are made.

MSTFAB fabricates empty enclosure shells, panels, brackets and welded parts from approved drawings. Agree the critical interfaces, inspection scope and shipping protection before production starts.

01Control the drawing revision

Confirm the 2D drawing revision alongside STEP/STP or DXF data, material and thickness. Mark the cutouts, bend datums, door swing and hardware locations that must fit the next assembly.

02Agree first-article evidence

Decide whether a prototype or first article is needed. List the dimensions, door gaps, hole patterns or sample fit checks to record. Sample size and acceptance criteria belong in the approved order. Use the sheet metal tolerance and finished-part acceptance guide to distinguish flat-cut checks from the agreed formed, welded or finished inspection state.

03Plan finishing and packing

Identify visible faces, masking, finish requirements and transport protection. Selected finishes may be completed by qualified long-term partners; agree photos or records where the order requires them.

Illustrative scene. Specify inspection points and records in the approved drawing and order.

Mechanical scope only. MSTFAB supplies fabricated metal parts and specified passive hardware; the buyer owns electrical integration and finished-equipment certification.

Send drawings for review

Core services

A coordinated route for the main fabrication steps.

Each step is planned around the final part: fit, tolerance, the approved finishing process, hardware, assembly sequence and packing condition.

Laser Cutting

Clean blanks, slots, vents, HMI openings and mounting holes cut from DXF, DWG, STEP and approved drawings.

SteelStainlessAluminum

Laser cutting services

CNC Bending

Formed flanges, cabinet doors, panels, brackets and enclosure bodies with bend sequence and tooling review before production.

Press brakeFlangesRepeatability

Sheet metal bending

Welding & Fabricated Assemblies

TIG, MIG, spot welding and fixture planning for frames, enclosures, cabinets and structural sheet metal assemblies.

TIG/MIGFixturesWeld cleanup

Welding services

Surface Finishing

Selected finishing processes are confirmed per order and may be completed by qualified long-term partners. Requirements can include powder coating, plating, anodizing, passivation and masking.

Powder coatingMaskingDFT checks

Surface treatment

Hardware & Assembly Fit

PEM nuts, studs, hinges, locks, handles, gasket channels and assembly checks prepared around your final installation needs.

PEM hardwareHingesFit checks

Assembly and packaging

Inspection & Export Packaging

Critical dimensions, surface protection, packing photos, foam, cartons, pallets and crates for international delivery.

QC photosCratesExport packing

Inspection reports

How projects move

A clear route from RFQ to shipment.

The best fabrication result starts before cutting. We review the route early so cost, tolerance and finish risks are visible.

01DFM Review

Material, bend limits, hole distance, welding access and finish notes.

02Quotation

Process route, quantity, finish, hardware and packing assumptions confirmed.

03Prototype / FAI

Sample or first article checks before repeat production.

04Production

Laser cutting, bending, welding, hardware installation and completion of the approved finishing process.

05QC

Critical dimensions, cosmetic surfaces, coating and assembly details reviewed.

06Export Packing

Film, foam, cartons, pallets or crates prepared for international shipping.

Dimensional checks help buyers approve repeat production with fewer receiving surprises.

Packaging is part of quality. Finished surfaces need protection before the parts leave the factory.

Procurement pain points

What this service page is meant to solve.

For overseas buyers, the expensive problems usually happen after the quote: parts do not fit, finish chips during transit, holes shift after bending, hardware is installed in the wrong sequence, or the supplier cannot repeat the sample.

DFM review before pricing, not after production starts.
Clear manufacturing route across cutting, bending, welding and finish.
Critical dimensions and fit points documented for QC.
Surface protection and export packaging planned early.
Build-to-print manufacturing for your brand, your drawings and your application.

Applications

Custom sheet metal shells for equipment builders.

We fabricate the metal body, panels, brackets, formed sheet metal trays, and welded structures from your drawings. Buyer-installed electrical components, wiring, software, final equipment certification and product validation remain outside the standard fabrication scope unless explicitly included in the approved order.

Build-to-print parts
Not finished equipment
DFM before production
Export-ready packaging

01Sheet Metal EnclosuresElectrical boxes, control cabinets, equipment shells and protective housings made to drawing.Cabinet shells
02EV Charger Enclosure ShellsOutdoor charger bodies, mounting plates, brackets, cutouts and ventilation details.EV charging
03Telecom & Network CabinetsRack parts, mounting structures, louvered panels and outdoor enclosure fabrication.Telecom hardware
04Industrial Machinery PartsGuards, covers, panels, brackets, chassis and welded support frames for OEM equipment.Machinery OEM
05Agricultural Sheet Metal PartsMachine guards, covers, brackets, trays and formed panels for agricultural equipment.Agriculture
06Medical & Aesthetic Equipment HousingsClean equipment covers, panels and enclosure shells made to customer drawings.Medical equipment

Materials and finishes

Choose the route around the working environment.

The right metal and finish depend on corrosion exposure, strength, weight, appearance, grounding and assembly requirements.

Cold Rolled & Carbon Steel

Cost-effective for cabinets, brackets, frames and powder-coated industrial parts.

Stainless Steel

Useful for corrosion resistance, washdown areas, medical equipment housings and durable industrial parts.

Aluminum

Selected for lightweight panels, corrosion resistance and equipment housings where weight matters.

Galvanized Steel

Practical for semi-outdoor panels and cost-sensitive enclosure structures with additional finish planning.

Buyer decision guides

Move from capability review to a controlled RFQ.

Use the guide that matches the decision your sourcing or engineering team needs to make next.

Build-to-Print ScopeSeparate fabricated mechanical parts from buyer-controlled equipment responsibilities.
RFQ Supplier ChecklistPrepare drawings, quantities, finish notes and inspection requirements.
Quote Cost ReviewCompare setup, hardware, finishing, inspection and packing assumptions.
Dimensional InspectionDefine critical dimensions and first-article evidence before production.

FAQ

Common questions from OEM buyers.

What sheet metal fabrication services does MSTFAB provide?

MSTFAB coordinates drawing-based sheet metal fabrication including DFM review, laser cutting, CNC bending, welding, hardware installation, inspection and export packaging for custom OEM parts. Powder coating and other selected finishes may be completed by qualified long-term partners under the approved order scope.

Does MSTFAB sell finished equipment?

No. MSTFAB manufactures custom sheet metal parts, enclosures, cabinets, panels and assemblies from customer-controlled drawings. Buyer-installed electrical components, wiring, software, final equipment certification and product validation remain outside the standard fabrication scope unless explicitly included in the approved order.

What should I send for a fast quote?

Send 2D drawings, STEP or STP files, material grade, thickness, surface finish, quantity, critical dimensions, hardware requirements and packaging needs.

Can you support prototypes and repeat production?

Yes. MSTFAB can support prototype review, first-article checks and repeat production when drawings, tolerances and inspection requirements are clearly defined.

What materials can be used for custom sheet metal fabrication?

Common options include cold-rolled steel, carbon steel, galvanized steel, stainless steel, aluminum, copper and brass. The best choice depends on strength, corrosion exposure, weight, finish and cost target.

Can MSTFAB fabricate sheet metal enclosures and cabinet shells?

Yes. MSTFAB fabricates enclosure shells, cabinet bodies, doors, mounting plates, cable-entry plates, brackets and welded frames from customer drawings. Electrical components and final equipment integration remain the customer’s scope.

Buyer verification

Know what your sheet metal quote actually covers.

Send the current drawings and requirements for your enclosure or fabricated part. Before production, confirm the mechanical scope, the evidence your team needs for acceptance and the agreed packing method.

Send drawings for review View factory photos

Drawing-controlled scope

Revision, material, thickness, hardware and finishing responsibility are identified in the quote.

Acceptance evidence

Agree which critical dimensions, first-article checks and records apply to your order.

Current factory evidence

Browse the workshop gallery and the laser cutting, bending and welding workflow video, then request recent, project-relevant photos or sample records. Process footage illustrates a route; it does not establish the specifications or inspection results for your order.