Drawing-led OEM metalwork in Guangzhou
Empty enclosures, cabinets, panels and brackets built to your drawing. Send STEP/STP, DXF/DWG or PDF files with quantity and finish details so we can quote the job.
Illustrative enclosure shells. Final construction follows approved drawings.
MSTFAB supports overseas OEM buyers with drawing-based sheet metal parts, electrical enclosures, cabinets, brackets, panels and welded assemblies. Our team coordinates laser cutting and CNC bending, press brake bending, welding and assembly, inspection and export packing. The finishing route is confirmed per order and may include qualified long-term partners.
For procurement teams in the USA, Europe and Australia, the goal is simple: fewer drawing surprises, cleaner samples, stable batch quality and parts that arrive ready for assembly.
Take a short walk through the workshop where released drawings move from flat sheet to inspected, export-ready metalwork.
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Third-party audited quality system for repeat OEM work.
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Serving global OEM buyers since 2001.
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Laser cutting, bending and welding, with the finishing route confirmed for each order.
Diverse Product Portfolio

New Energy
Weather-resistant steel shells with gasketed access doors, custom cutouts and powder-coated finishes for EV charging equipment.
For public charging, fleet depots and parking infrastructure

Automation
Reinforced floor-standing cabinet shells with removable panels, mounting plates and service access for automation systems.
For production lines, machinery and process control

Healthcare
Stainless steel and aluminum housings with cleanable surfaces, precise interface cutouts and removable service panels.
For diagnostic, laboratory and aesthetic equipment

Energy Storage
Large-format cabinet shells with ventilation, gasketed doors and modular rack space for battery storage projects.
For commercial ESS and grid-support installations

Smart Infrastructure
Multi-door locker and kiosk shells with aligned access panels, display cutouts and custom powder-coated finishes.
For parcel delivery, retail and self-service terminals

Telecom
Weatherproof outdoor cabinet shells with protected ventilation, gasketed doors and empty equipment rails for fibre and 5G.
For roadside, fibre and wireless infrastructure

Electrical
Wall-mounted and floor-standing enclosure shells with blank mounting plates, cable entries and lockable service doors.
For distribution, switchgear and OEM control equipment

Outdoor Infrastructure
Outdoor cabinet shells with rain hoods, filtered louvers and protected plinths for utility and field installations.
For utilities, renewables and remote equipment sites

General OEM
Drawing-led steel, stainless and aluminum housings with custom cutouts, covers, brackets and access panels.
For machinery, instruments and purpose-built equipment
Need something bespoke? Send a drawing for a project-specific quote.
End-to-End Sheet Metal Services
Per Drawing
Laser-cut profiles for steel, stainless steel and aluminum, subject to grade, thickness and drawing review.
Per Drawing
High-repeatability press brakes. Complex profiles, short to mass run.
TIG / MIG
TIG and MIG welding routes are reviewed against the material, joint design and agreed inspection requirements.
RAL / Custom
Powder coating and other finishes are specified per project; some work is completed by long-term partners.
Agreed Checks
Dimensional and visual checks follow the agreed drawing and order requirements before packing.
Your Reliable Manufacturing Partner
Smart Manufacturing Facility
Years Serving Global OEMs
Drawing-Led Production Planning
Response Time Confirmed Per RFQ
About MSTFAB
MSTFAB is a custom sheet metal fabrication manufacturer based in Guangzhou, China. We provide OEM metal enclosures, cabinets, brackets, panels and precision sheet metal assemblies for global industrial customers.
Our fabrication work covers laser cutting, CNC bending, welding and mechanical assembly. We coordinate project-specific surface finishing, including work completed by long-term partners, alongside drawing review and export packing.
MSTFAB builds custom sheet metal enclosures for industrial OEM programs, protecting sensitive electronics from compact PLC housings to full-scale network infrastructure cabinets.
One accountable team turns your STEP, DXF or PDF files into approved sheet metal shells, with DFM decisions and inspection gates confirmed before repeat production.

Your drawing remains the source of truth. We confirm the details before material is cut, because surprises belong in birthday boxes, not incoming inspection.
Send STEP, DXF or PDF files with quantity, material, finish, critical dimensions and application notes.
We check bends, tolerances, cutouts, hardware, weld access and visible-surface risks before pricing.
You receive a line-item quote; the approved drawing revision becomes the controlled production baseline.
We fabricate and inspect the prototype or first article, then provide the agreed evidence for approval.
Released parts move through laser cutting, CNC bending, welding, hardware insertion and finishing.
Final dimensions, cosmetic surfaces and packing are checked before export-ready shipment.
Send your drawing, quantity and finish requirements. We will review the manufacturing route before quoting.
FAST RFQ START
Drawing review · Project-specific quote · Clear fabrication scope
Why Engineers Choose MSTFAB
DFM feedback on bend radius, tolerance stack-up, material choice and finish before production starts.
Laser cutting, CNC bending and welding are coordinated in Guangzhou; the finishing route is confirmed per order.
Traceable inspection checkpoints help overseas teams reduce rework, field failures and surprise costs.
Photo confirmation, protected packing and clear shipment labels support USA, Europe and Australia buyers.

Quality Management System

Automotive Quality Management

Environmental Management

Buyer RFQ Checklist
| Criteria | Project input | Confirm in the quotation |
|---|---|---|
| Production schedule | State prototype and repeat-order quantities | Confirm sample and batch lead times per order |
| Quote basis | Provide revision, grade, finish and quantity | State price, setup charges and exclusions |
| Critical dimensions | Mark critical features on the controlled drawing | Agree feasibility and inspection method |
| Drawing package | Send STEP/STP/DXF/DWG/PDF files | Confirm drawing revision and scope |
| DFM review | Flag bend, weld and hardware risks | Agree review deliverables before order |
| Required evidence | Specify any certificates and inspection records | Confirm applicable scope and evidence |
| Order quantity | State prototype and batch quantities | Confirm feasible batch size per design |
| Packing and delivery | State destination and packing requirements | Agree documents and delivery terms in quote |
MSTFAB selects certified SS400, SPCC, SUS304/SUS316, SECC, aluminum alloy and brass/CuZn copper alloy materials for electrical enclosures, medical housings, EV energy equipment, telecom cabinets, industrial machinery and outdoor metal parts. Material, finish, tolerance, conductivity and galvanic compatibility are reviewed at our Guangzhou source factory before production.
Available material certificates and grade documentation are reviewed when specified for the order.
Thickness, bend radius, surface finish and tolerance risks are reviewed by the Guangzhou engineering team.
Brass/CuZn, aluminum, stainless and zinc-coated parts are planned for grounding, inserts and coating compatibility.
Structural carbon steel
JIS G 3101 · ASTM A36 · EN S235JR
A practical structural steel for control cabinets, switchgear frames, machinery covers and load-bearing chassis. MSTFAB reviews bend radius, weld sequence and coating requirements before production.
Cold rolled steel for precision panels
JIS G 3141 · ASTM A1008 · EN DC01
Specified for close-tolerance CNC bending, HMI panels, instrument covers and powder-coated housings where flatness and repeatable cosmetic finish matter.
Stainless steel for corrosion resistance
JIS G 4304 · ASTM A240 · EN 1.4301/1.4401
Used for medical housings, food equipment covers, coastal telecom cabinets and premium visible panels. Brushed, satin and passivated finishes can be planned with drawing review.
Electro-galvanized steel with protected surface
JIS G 3313 · ASTM A591 · EN 10152
A common choice for electrical switchgear, EV charging housings and telecom panels when buyers need a clean zinc-protected substrate before coating or assembly.
Aluminum alloy for lightweight enclosures
ASTM B209 · JIS H 4000 · EN AW-5052/6061
Recommended for EV energy equipment, solar inverter housings, portable instrument cases and outdoor metal parts where weight reduction and corrosion behavior matter.
Copper alloy for conductive OEM parts
ASTM B36/B36M · ASTM B16/B16M · EN CW508L/CW614N
Brass is selected when an OEM enclosure project needs electrical conductivity, grounding contact, threaded inserts, EMI/RFI contact parts or a premium visible metal finish. MSTFAB checks alloy grade, thickness, bend radius, plating and contact compatibility before production so brass parts fit cleanly with stainless steel, SECC or aluminum assemblies.
We help overseas engineering and procurement teams turn drawings into reliable sheet metal enclosures, cabinets and precision metal parts.
“Your DFM feedback helped us improve the enclosure structure before production. The final parts matched our assembly requirements well.”
— Procurement Manager — Industrial Equipment OEM, Europe
“The cabinet quality was stable across the batch, especially the welding, powder coating, and packaging details.”
— Senior Mechanical Engineer — Electrical Equipment Company, Australia
“MSTFAB responded quickly to drawing changes and provided practical suggestions for cost control and manufacturability.”
— Project Buyer — EV Charging Equipment Manufacturer, United States
We have been providing high-quality sheet metal fabrication services
to customers worldwide.














High-quality materials and strict quality control system
OEM & ODM services tailored to meet your needs
Leading manufacturing equipment and technology
Experienced engineers and skilled workers
Serving customers around the world
OEM sheet metal fabrication
MSTFAB builds empty metal enclosures, cabinets, panels and brackets to approved drawings. These five checkpoints show what matters as a project moves from quotation to packing. The exact inspections and records are agreed for each order.

The revision, critical datums, mating parts and finish callouts drive the quote. We review bend access, hardware locations and unclear interfaces before a manufacturing route is agreed.

Material grade, thickness and cut geometry affect every step that follows. Identification, traceability and material documents are specified in the purchase order when the project needs them.

Bend sequence, weld access, inserted hardware and visible faces are reviewed together. Critical dimensions are checked against the approved drawing, not a one-size-fits-all tolerance promise.

A first article is useful when it answers the buyer's risky questions: mounting pattern, door fit, cutouts and hardware positions. The inspection scope and records are agreed before repeat production.

Doors, edges, hardware and visible surfaces need protection matched to the shipping route. Surface finishing is defined per order and may be completed by long-term partners.
We supply drawing-defined metalwork, not populated electrical equipment. Share STEP/STP, DXF/DWG or PDF files with material, quantity and the features that matter to assembly.

The people behind the parts
A bend needs another look, a material is unavailable, or the finish changes. Those are normal project moments, not reasons for radio silence. Meet the MSTFAB people who connect factory review, sourcing and export communication in Guangzhou.
Reviews manufacturability, process risks and inspection points before a project is released.
Coordinates material sourcing and finishing partners so the purchasing scope stays clear.
Coordinates overseas RFQs, clarifications and shipment updates with the factory team.
Attach one file, up to 10 MB (STEP/STP, DXF/DWG, PDF, ZIP, or an image). Include material, quantity, and finish details for an accurate quote.
WeChat Contact
Scan to connect with MSTFAB for OEM sheet metal fabrication support.
[email protected]
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+86 173 2831 6456