Drawing-led OEM metalwork in Guangzhou

Custom Sheet Metal Fabrication

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.

Guangzhou sheet metal factory

Inside MSTFAB Guangzhou Sheet Metal Fabrication Factory

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.

  • Drawing-based enclosures, panels, brackets and welded assemblies
  • Laser cutting, CNC bending, welding and inspection; finishing per project
  • Prototype support and controlled repeat production for OEM buyers

✓

ISO 9001:2015 Certified

Third-party audited quality system for repeat OEM work.

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23+ Years Expertise

Serving global OEM buyers since 2001.

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Drawing-Led Fabrication

Laser cutting, bending and welding, with the finishing route confirmed for each order.

Diverse Product Portfolio

Custom Sheet Metal Enclosures for High-Value Applications

Powder-coated sheet metal EV charging enclosure shell with open gasketed door and empty mounting plate.

New Energy

EV Charging Enclosures

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

Floor-standing industrial control cabinet shell with open double doors, empty mounting plates and reinforced frame.

Automation

Industrial Control Cabinets

Reinforced floor-standing cabinet shells with removable panels, mounting plates and service access for automation systems.

For production lines, machinery and process control

Stainless steel medical equipment housing shells with precision cutouts and removable access panels.

Healthcare

Medical Equipment Housings

Stainless steel and aluminum housings with cleanable surfaces, precise interface cutouts and removable service panels.

For diagnostic, laboratory and aesthetic equipment

Powder-coated energy storage cabinet shells with ventilation, gasketed doors and empty internal rack frames.

Energy Storage

Energy Storage Cabinets

Large-format cabinet shells with ventilation, gasketed doors and modular rack space for battery storage projects.

For commercial ESS and grid-support installations

Custom sheet metal smart locker and self-service kiosk enclosure shells with empty display cutouts.

Smart Infrastructure

Smart Locker & Kiosk Enclosures

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

Weatherproof outdoor telecom cabinet shell with open gasketed door, empty 19-inch rails and protected ventilation.

Telecom

Outdoor Telecom Cabinets

Weatherproof outdoor cabinet shells with protected ventilation, gasketed doors and empty equipment rails for fibre and 5G.

For roadside, fibre and wireless infrastructure

Custom electrical box and cabinet shells with open doors, blank mounting plates and cable-entry cutouts.

Electrical

Electrical Boxes & Cabinets

Wall-mounted and floor-standing enclosure shells with blank mounting plates, cable entries and lockable service doors.

For distribution, switchgear and OEM control equipment

Weatherproof outdoor power cabinet shells with rain hoods, louvers and an empty mounting interior.

Outdoor Infrastructure

Outdoor Power Cabinets

Outdoor cabinet shells with rain hoods, filtered louvers and protected plinths for utility and field installations.

For utilities, renewables and remote equipment sites

Custom sheet metal equipment enclosure shells, chassis, covers and brackets with precision cutouts.

General OEM

Custom Equipment Enclosures

Drawing-led steel, stainless and aluminum housings with custom cutouts, covers, brackets and access panels.

For machinery, instruments and purpose-built equipment

End-to-End Sheet Metal Services

From Drawings to Finished Sheet Metal Parts

Per Drawing

Laser Cutting

Laser-cut profiles for steel, stainless steel and aluminum, subject to grade, thickness and drawing review.

Per Drawing

CNC Bending

High-repeatability press brakes. Complex profiles, short to mass run.

TIG / MIG

Welding & Fabrication

TIG and MIG welding routes are reviewed against the material, joint design and agreed inspection requirements.

RAL / Custom

Surface Treatment

Powder coating and other finishes are specified per project; some work is completed by long-term partners.

Agreed Checks

Final Assembly & QC

Dimensional and visual checks follow the agreed drawing and order requirements before packing.

Your Reliable Manufacturing Partner

Drawing-Led Sheet Metal Manufacturing Since 2001.

MSTFAB coordinates drawing-based cutting, bending, welding, inspection and export packing in Guangzhou. Powder coating and other finishes are planned per order and may be completed by long-term external partners. The approved drawing and quotation define the fabrication and finishing scope.

5,000 m²

Smart Manufacturing Facility

23+

Years Serving Global OEMs

DFM

Drawing-Led Production Planning

RFQ

Response Time Confirmed Per RFQ

About us

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.

Applications Portfolio

Our Enclosure Applications

MSTFAB builds custom sheet metal enclosures for industrial OEM programs, protecting sensitive electronics from compact PLC housings to full-scale network infrastructure cabinets.

CONTROLLED CUSTOM MANUFACTURING

From Your Drawing to Export-Ready Sheet Metal Parts

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.

Chinese engineers reviewing a custom sheet metal enclosure drawing and checking the fabricated shell with a digital caliper
DRAWING-LED OEM FABRICATION

Know What Is Confirmed Before 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.

  • What you sendSTEP, DXF or PDF files, quantity, material, finish and critical dimensions.
  • What we confirmDFM risks, revision status, first-article route and inspection points.
  • What you receiveApproved samples, inspection evidence and protected export packing.
01
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Drawing & Requirements

Send STEP, DXF or PDF files with quantity, material, finish, critical dimensions and application notes.

02
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DFM & Risk Review

We check bends, tolerances, cutouts, hardware, weld access and visible-surface risks before pricing.

03
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Quote & Revision Lock

You receive a line-item quote; the approved drawing revision becomes the controlled production baseline.

04
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First Article Approval

We fabricate and inspect the prototype or first article, then provide the agreed evidence for approval.

05
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Controlled Production

Released parts move through laser cutting, CNC bending, welding, hardware insertion and finishing.

06
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Inspection & Shipment

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

Send Drawings for a Practical Quote

Drawing review · Project-specific quote · Clear fabrication scope

Why Engineers Choose MSTFAB

01

Drawing Review Before Quote

DFM feedback on bend radius, tolerance stack-up, material choice and finish before production starts.

02

In-house Laser Cutting & Bending

Laser cutting, CNC bending and welding are coordinated in Guangzhou; the finishing route is confirmed per order.

03

ISO 9001 Process Control

Traceable inspection checkpoints help overseas teams reduce rework, field failures and surprise costs.

04

Export Packaging Evidence

Photo confirmation, protected packing and clear shipment labels support USA, Europe and Australia buyers.

Company Certificate

Guangzhou Maisituo Sheet Metal Manufacturing Co., Ltd.

ISO 9001:2015 TUV Certificate - Guangzhou Maisituo

ISO 9001:2015

Quality Management System

IATF 16949:2016 TUV Certificate - Guangzhou Maisituo

IATF 16949:2016

Automotive Quality Management

ISO 14001:2015 Environmental Certificate - Guangzhou Maisituo

ISO 14001:2015

Environmental Management

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MSTFAB certificate preview

Buyer RFQ Checklist

What to Confirm Before Pricing a Custom Part

CriteriaProject inputConfirm in the quotation
Production scheduleState prototype and repeat-order quantitiesConfirm sample and batch lead times per order
Quote basisProvide revision, grade, finish and quantityState price, setup charges and exclusions
Critical dimensionsMark critical features on the controlled drawingAgree feasibility and inspection method
Drawing packageSend STEP/STP/DXF/DWG/PDF filesConfirm drawing revision and scope
DFM reviewFlag bend, weld and hardware risksAgree review deliverables before order
Required evidenceSpecify any certificates and inspection recordsConfirm applicable scope and evidence
Order quantityState prototype and batch quantitiesConfirm feasible batch size per design
Packing and deliveryState destination and packing requirementsAgree documents and delivery terms in quote

Material selection for OEM sheet metal enclosures

Engineering-grade sheet metal materials for USA, Europe and Australia projects.
SS400
SPCC
SUS304 / SUS316
SECC
Aluminum alloy
Brass / CuZn

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.

Material records by order

Available material certificates and grade documentation are reviewed when specified for the order.

DFM before production

Thickness, bend radius, surface finish and tolerance risks are reviewed by the Guangzhou engineering team.

Conductivity & galvanic review

Brass/CuZn, aluminum, stainless and zinc-coated parts are planned for grounding, inserts and coating compatibility.

SS400 carbon steel sheet material for custom sheet metal fabrication
Image title: SS400 structural carbon steel sheet for custom enclosures
High strength
Weldable
Outdoor-ready

SS400

Structural carbon steel

JIS G 3101 · ASTM A36 · EN S235JR

Tensile strength
400-510 MPa
Yield strength
>= 245 MPa
Elongation
>= 21%
Hardness
≈ 120 HB

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.

Control cabinets
Structural chassis
Outdoor enclosures
Switchgear frames
SPCC cold rolled steel sheet material for precision metal enclosures
Image title: SPCC cold rolled steel sheet for precision sheet metal panels
Flat surface
Tight tolerance
Paintable

SPCC

Cold rolled steel for precision panels

JIS G 3141 · ASTM A1008 · EN DC01

Tensile strength
270-410 MPa
Yield strength
<= 220 MPa
Elongation
>= 28%
Hardness
55-75 HRB

Specified for close-tolerance CNC bending, HMI panels, instrument covers and powder-coated housings where flatness and repeatable cosmetic finish matter.

Instrument housings
HMI panels
Server rack panels
Painted covers
SUS304 stainless steel sheet material for corrosion resistant enclosures
Image title: SUS304 and SUS316 stainless steel sheet for corrosion-resistant housings
Food grade
Marine grade
Hygienic finish

SUS304 / SUS316

Stainless steel for corrosion resistance

JIS G 4304 · ASTM A240 · EN 1.4301/1.4401

Tensile strength
>= 515 MPa
Yield strength
>= 205 MPa
Elongation
>= 40%
Hardness
<= 200 HB

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.

Medical housings
Food equipment
Marine cabinets
Outdoor covers
SECC electro galvanized steel sheet material for electrical cabinet fabrication
Image title: SECC electro-galvanized steel sheet for protected enclosure panels
Zinc coated
Cost effective
Indoor protection

SECC

Electro-galvanized steel with protected surface

JIS G 3313 · ASTM A591 · EN 10152

Tensile strength
270-410 MPa
Yield strength
<= 220 MPa
Elongation
>= 27%
Hardness
≈ 60 HRB

A common choice for electrical switchgear, EV charging housings and telecom panels when buyers need a clean zinc-protected substrate before coating or assembly.

Electrical switchgear
EV charging housings
Telecom panels
Control boxes
AL5052 aluminum sheet material for lightweight custom metal enclosures
Image title: AL 5052-H32 and 6061-T6 aluminum alloy sheet for lightweight enclosures
Lightweight
Anodizable
Marine alloy

AL 5052-H32 / 6061-T6

Aluminum alloy for lightweight enclosures

ASTM B209 · JIS H 4000 · EN AW-5052/6061

Tensile 5052-H32
228 MPa
Tensile 6061-T6
310 MPa
Yield 5052-H32
193 MPa
Hardness 6061-T6
95 HB

Recommended for EV energy equipment, solar inverter housings, portable instrument cases and outdoor metal parts where weight reduction and corrosion behavior matter.

EV battery enclosures
Solar inverter housings
Portable cases
Outdoor panels
Brass C260 and C360 conductive parts for OEM sheet metal enclosure assemblies
Image title: Brass C260/C360 conductive parts for OEM sheet metal enclosure assemblies
Conductive
Corrosion resistant
Premium finish
Brass C260 / C360

Copper alloy for conductive OEM parts

ASTM B36/B36M · ASTM B16/B16M · EN CW508L/CW614N

Alloy options
C26000 / C36000
Conductivity
≈ 26-28% IACS
Finishes
Nickel / tin plating
DFM checks
Bend + insert fit

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.

Grounding terminals
Threaded inserts
EMI/RFI contacts
Nameplates & fittings
GLOBAL PROJECT EXPERIENCE

Trusted by OEM Buyers for Custom Sheet Metal Fabrication

We help overseas engineering and procurement teams turn drawings into reliable sheet metal enclosures, cabinets and precision metal parts.

EUROPE

Industrial Equipment Enclosures

RegionEurope
MaterialStainless steel / carbon steel
ProcessLaser cutting, CNC bending, welding, powder coating
ResultImproved assembly fit and reduced rework through early DFM review.

“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

AUSTRALIA

Outdoor Electrical Cabinets

RegionAustralia
MaterialGalvanized steel
ProcessSealing design, welding, powder coating, final assembly
ResultExport-ready cabinets built for outdoor installation and corrosion resistance.

“The cabinet quality was stable across the batch, especially the welding, powder coating, and packaging details.”

— Senior Mechanical Engineer — Electrical Equipment Company, Australia

UNITED STATES

EV Charging Cabinet Housings

RegionUnited States
MaterialAluminum / cold rolled steel
ProcessVentilation cutouts, bending, welding, powder coating
ResultSupported OEM production with stable batch quality and protected export packaging.

“MSTFAB responded quickly to drawing changes and provided practical suggestions for cost control and manufacturability.”

— Project Buyer — EV Charging Equipment Manufacturer, United States

Company Partner

We have been providing high-quality sheet metal fabrication services
to customers worldwide.

America
TeslaEmersonWatergen
Europe
HELISADECA AutomotiveStep2DeliFELCO
Asia
Mitsubishi Heavy IndustriesCATLMideaUnion OptechTONGYU CommunicationBrilliance Auto

Premium Quality

High-quality materials and strict quality control system

Custom Solutions

OEM & ODM services tailored to meet your needs

Advanced Equipment

Leading manufacturing equipment and technology

Professional Team

Experienced engineers and skilled workers

Global Service

Serving customers around the world

Your Reliable Partner in Sheet Metal Fabrication

OEM sheet metal fabrication

Quality control from drawing to shipment

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.

Illustrative drawing review of an empty sheet metal enclosure shell
Illustrative process image; the approved drawing and order define actual acceptance.

Confirm the drawing before metal is cut

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.

Illustrative team reviewing a sheet metal enclosure drawing and fabricated parts
Illustrative drawing-and-part review. For your project, request current workshop photos and agree on inspection checkpoints before production.

The people behind the parts

When the drawing changes, who answers?

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.

  1. Frank Factory review

    Reviews manufacturability, process risks and inspection points before a project is released.

  2. Henry Materials and partners

    Coordinates material sourcing and finishing partners so the purchasing scope stays clear.

  3. Caroline Buyer communication

    Coordinates overseas RFQs, clarifications and shipment updates with the factory team.

Meet the team See the factory gallery

Send Drawings for Quote

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.

Quick Quote Request