Sheet Metal Fabrication Techniques: The Complete Guide to Sheet Metal Manufacturing Processes

Sheet metal fabrication techniques are͏͏ defined͏͏ as͏͏ the͏͏ complete͏͏ sheet metal fabrication͏͏ process͏͏ used͏͏ to͏͏ cut,͏͏ form,͏͏ join,͏͏ and͏͏ finish͏͏ flat͏͏ metal͏͏ sheets͏͏ into͏͏ precise,͏͏ functional͏͏ parts͏͏ and͏͏ assemblies.͏͏ The͏͏ sheet͏͏ metal͏͏ manufacturing͏͏ methods͏͏ covered͏͏ here͏͏ range͏͏ from͏͏ laser cutting͏͏ a͏͏ 0.5͏͏ mm͏͏ stainless͏͏ steel͏͏ bracket͏͏ to͏͏ deep-drawing͏͏ an͏͏ aluminium͏͏ automotive͏͏ panel͏͏ to͏͏ TIG͏͏ welding͏͏ a͏͏ stainless͏͏ steel͏͏ medical͏͏ enclosure,͏͏ and͏͏ every͏͏ step͏͏ in͏͏ between.͏͏

Whether͏͏ you͏͏ are͏͏ fabricating͏͏ sheet͏͏ metal͏͏ for͏͏ automotive͏͏ enclosures,͏͏ medical͏͏ devices,͏͏ or͏͏ aerospace͏͏ assemblies,͏͏ knowing͏͏ which͏͏ technique͏͏ to͏͏ specify͏͏ (and͏͏ when)͏͏ has͏͏ a͏͏ direct͏͏ impact͏͏ on͏͏ part͏͏ cost,͏͏ lead͏͏ time,͏͏ dimensional͏͏ accuracy,͏͏ and͏͏ surface͏͏ quality.͏͏ The wrong process choice is still one of the most common—and expensive—mistakes in sheet metal sourcing, which is why Haizol’s custom sheet metal fabrication service connects buyers with verified factories across all major process types.

Sheet Metal Manufacturing Techniques: Key Facts

• Sheet metal fabrication is defined͏͏ as͏͏ transforming͏͏ flat͏͏ metal͏͏ sheets͏͏ (0.4-6͏͏ mm͏͏ thick)͏͏ into͏͏ parts͏͏ through͏͏ four͏͏ operations:͏͏ cutting,͏͏ forming,͏͏ joining,͏͏ and͏͏ finishing.͏͏
• Cutting methods include͏͏ laser͏͏ (best͏͏ under͏͏ 25͏͏ mm,͏͏ +-0.05͏͏ mm͏͏ accuracy),͏͏ plasma͏͏ (thick͏͏ steel͏͏ above͏͏ 12͏͏ mm),͏͏ waterjet͏͏ (zero͏͏ HAZ͏͏ for͏͏ titanium͏͏ and͏͏ Inconel),͏͏ and͏͏ NC͏͏ punching͏͏ (no͏͏ tooling͏͏ cost,͏͏ in-process͏͏ forming).
• Forming is led by bending (93.4% of Haizol's verified factories offer it) - the minimum inside bend radius is 1T for steel, 2T for aluminium 6061-T6.
• Joining is predominantly welding - TIG for precision stainless and aluminium, MIG for structural mild steel, spot welding for high-volume thin sheet.
• Finishing options include powder coating (60-120 um), anodising (Types I-III per MIL-A-8625), passivation (mandatory for medical stainless), and zinc electroplating.
• DFM rules: maintain͏͏ bend-to-hole͏͏ distance͏͏ >=2x͏͏ material͏͏ thickness,͏͏ minimum͏͏ inside͏͏ radius͏͏ >=1T,͏͏ and͏͏ uniform͏͏ wall͏͏ thickness͏͏ where͏͏ possible͏͏ to͏͏ avoid͏͏ distortion.
• Sheet metal fabricating companies in China common target industries: 66.1%͏͏ of͏͏ factories͏͏ serve͏͏ automotive,͏͏ 62.4%͏͏ medical͏͏ equipment,͏͏ 42.1%͏͏ aerospace,͏͏ and͏͏ 43.0%͏͏ robotics͏͏ (Haizol͏͏ sample͏͏ data,͏͏ n=242,͏͏ 2026).
• Sheet metal fabricators China common certifications: 77.7%͏͏ hold͏͏ ISO͏͏ 9001;͏͏ 22.3%͏͏ hold͏͏ IATF͏͏ 16949͏͏ (automotive);͏͏ 5.4%͏͏ hold͏͏ ISO͏͏ 13485͏͏ (medical͏͏ devices).
• Metal fabrication China geographical locations: China’s͏͏ sheet metal fabrication͏͏ network͏͏ spans͏͏ Jiangsu͏͏ (33.1%),͏͏ Zhejiang͏͏ (24.8%),͏͏ and͏͏ Guangdong͏͏ (24.4%).
  

What Is Sheet Metal?

Sheet metal is defined as flat metal stock produced by industrial rolling mills in thicknesses from approximately 0.1 mm to 6 mm, the material form processed by all sheet metal fabrication techniques including cutting, forming, welding, and finishing.

Sheet metal thickness is specified in millimetres in modern engineering drawings. Common gauge equivalents for mild steel: 18 ga = 1.2 mm, 16 ga = 1.5 mm, 14 ga = 2.0 mm, 12 ga = 2.5 mm, 10 ga = 3.2 mm.

What is sheet metal made of? Sheet metal is produced from mild steel, stainless steel (304, 316, 430), aluminium alloys (5052, 6061), galvanised steel, copper, brass, titanium, and Inconel. The choice of material determines the applicable fabrication techniques, tooling requirements, and finishing options.

What Is Sheet Metal Fabrication?

Sheet metal fabrication is defined as the manufacturing process of transforming flat metal sheets into functional parts by cutting, forming, joining, and finishing. The starting material is flat sheet stock, typically 0.4-6 mm thick for structural and enclosure applications, though specialist processes (deep drawing, hydroforming) work with gauge as thin as 0.1 mm or as thick as 25 mm.

Sheet metal work, covering the full range of sheet metal fabrication and assembly operations from cutting through to a finished product, is distinct from casting (pouring liquid metal into a mould) and CNC machining (removing material from a solid billet). For a full explanation of how fabrication differs from the broader manufacturing process, see fabrication vs. manufacturing.

Sheet metal machining, meaning drilling, tapping, or milling applied to sheet stock, is typically a secondary operation used after forming when punching or laser cutting cannot hold the required hole tolerance. This kind of machining is common in aerospace and precision electronics fabrication. sheet metal fabrication itself is a net-shape or near-net-shape process: the flat blank is formed into 3D geometry with minimal material waste, especially compared to machining.

Common materials processed by sheet metal fabrication:

Material	Typical Thickness Range	Key Properties	Common Applications
Mild steel (S235, S355)	0.5-6 mm	Low cost, good weldability, high strength	Structural frames, chassis, brackets
Stainless steel (304, 316)	0.5-4 mm	Corrosion resistance, hygienic, aesthetic	Medical enclosures, food equipment, marine
Aluminium (5052, 6061)	0.5-6 mm	Lightweight, corrosion resistant, weldable	Aerospace panels, EV enclosures, electronics
Galvanised steel	0.5-3 mm	Zinc-coated, outdoor corrosion resistance	HVAC ducting, automotive body, construction
Copper	0.3-3 mm	High electrical/thermal conductivity	Bus bars, heat exchangers, electronics
Brass	0.3-2 mm	Corrosion resistance, machinability	Decorative hardware, valves, terminals
Titanium Grade 2	0.5-4 mm	High strength-to-weight, biocompatible	Aerospace, medical implant enclosures

Common Cutting Techniques in Sheet Metal Fabrication

1. Sheet Metal Cutting

Sheet metal cutting is defined͏͏ as͏͏ the͏͏ first͏͏ operation͏͏ in͏͏ most͏͏ sheet͏͏ metal͏͏ workflows,͏͏ separating͏͏ flat͏͏ sheet͏͏ into͏͏ a͏͏ 2D͏͏ profile͏͏ or͏͏ blank.͏͏ The͏͏ process͏͏ you͏͏ choose͏͏ drives͏͏ edge͏͏ quality,͏͏ heat-affected͏͏ zone͏͏ (HAZ),͏͏ minimum͏͏ feature͏͏ size,͏͏ and͏͏ cost͏͏ per͏͏ part.͏͏

Based͏͏ on͏͏ Haizol's͏͏ sample data of fabrication͏͏ factoryies in China (n=242,͏͏ 2026),͏͏ cutting͏͏ capability͏͏ is͏͏ offered͏͏ by͏͏ 80.6%͏͏ of͏͏ factories,͏͏ making͏͏ it͏͏ the͏͏ third͏͏ most͏͏ common͏͏ capability͏͏ after͏͏ bending͏͏ and͏͏ welding͏͏ (93.0%).͏͏

2. Laser Cutting

Laser cutting is defined as using͏͏ a͏͏ focused͏͏ beam͏͏ (fibre͏͏ laser͏͏ at͏͏ 1,070͏͏ nm͏͏ for͏͏ metal)͏͏ to͏͏ vaporise͏͏ material͏͏ along͏͏ a͏͏ CNC-programmed͏͏ path,͏͏ producing͏͏ a͏͏ 0.1-0.3͏͏ mm͏͏ kerf,͏͏ +-0.05͏͏ mm͏͏ positional͏͏ accuracy,͏͏ and͏͏ a͏͏ minimal͏͏ HAZ͏͏ of͏͏ 0.05-0.5͏͏ mm͏͏ on͏͏ material͏͏ up͏͏ to͏͏ 25͏͏ mm͏͏ thick.͏͏

3. Waterjet Cutting

Waterjet cutting is defined as directing a high-pressure stream of water (up to 400 MPa / 60,000 PSI, with jet velocities up to 900 m/s) - mixed with abrasive garnet (Mohs hardness 7.5) - to cut metal with zero heat-affected zone. It is the correct choice for titanium, Inconel, heat-treated steels, and composites where heat input would alter material properties.

4. NC Punching

NC punching is offered by 52.5% of fabrication factories, which confirms it as a mainstream capability rather than a specialist process. CNC punching produces no HAZ (cold shearing process), enables in-process forming (louvres, dimples, countersinks in a single cycle), and is lower cost per hole than laser at volume. Minimum hole diameter equals material thickness; maximum thickness typically 6 mm.

Forming Techniques in Sheet Metal Fabrication

Sheet Metal Forming

Sheet metal forming is defined͏͏ as͏͏ shaping͏͏ flat͏͏ blanks͏͏ into͏͏ 3D͏͏ geometry͏͏ through͏͏ plastic͏͏ deformation,͏͏ without͏͏ removing͏͏ material.͏͏ The͏͏ main forming processes are bending, deep drawing, stamping, roll forming, and metal spinning.

Bending

Bending is the most common sheet metal forming operation, offered͏͏ by͏͏ 93.4%͏͏ of͏͏ factories͏͏ in China.͏͏ CNC press brake bending uses͏͏ a͏͏ punch͏͏ and͏͏ V-die͏͏ to͏͏ form͏͏ precise͏͏ angles,͏͏ and͏͏ it͏͏ is͏͏ the͏͏ standard͏͏ process͏͏ for͏͏ enclosures,͏͏ brackets,͏͏ and͏͏ panels.͏͏

The͏͏ minimum͏͏ inside͏͏ bend͏͏ radius͏͏ is͏͏ 1x͏͏ material͏͏ thickness͏͏ (1T)͏͏ for͏͏ mild͏͏ steel͏͏ and͏͏ stainless͏͏ steel,͏͏ 0.5T͏͏ for͏͏ aluminium͏͏ 5052-O,͏͏ and͏͏ 2T͏͏ for͏͏ aluminium͏͏ 6061-T6.͏͏

Springback

Springback is defined as the elastic recovery of bent sheet metal after͏͏ the͏͏ punch͏͏ releases,͏͏ causing͏͏ the͏͏ angle͏͏ to͏͏ partially͏͏ open.͏͏ It͏͏ is͏͏ typically͏͏ corrected͏͏ by͏͏ overbending͏͏ 2-5°͏͏ (material-dependent)͏͏ or͏͏ by͏͏ using͏͏ bottoming͏͏ (coining)͏͏ instead͏͏ of͏͏ air͏͏ bending͏͏ when͏͏ tighter͏͏ angle͏͏ control͏͏ is͏͏ required.͏͏

Deep Drawing

Deep drawing is defined as pulling a flat blank͏͏ into͏͏ a͏͏ die͏͏ cavity͏͏ with͏͏ a͏͏ punch͏͏ and͏͏ blankholder͏͏ to͏͏ form͏͏ a͏͏ hollow͏͏ cup,͏͏ box,͏͏ or͏͏ cylinder.͏͏

Common͏͏ deep-drawn͏͏ parts͏͏ include͏͏ stainless͏͏ steel͏͏ sinks,͏͏ automotive͏͏ fuel͏͏ tanks,͏͏ and͏͏ medical͏͏ device͏͏ housings. The limiting draw ratio (LDR) for most materials is 2.0-2.2, and exceeding this range increases the risk of tearing.

Metal Spinning

Metal spinning is defined as rotating a flat circular blank͏͏ on͏͏ a͏͏ mandrel͏͏ while͏͏ a͏͏ forming͏͏ tool͏͏ presses͏͏ it͏͏ against͏͏ a͏͏ shaped͏͏ die͏͏ to͏͏ produce͏͏ symmetrical͏͏ hollow͏͏ forms,͏͏ including͏͏ cones,͏͏ cylinders,͏͏ and͏͏ bowls. CNC spinning is used for volume production, while manual spinning is used for prototypes and large-diameter parts where press tooling is cost-prohibitive.

Joining Techniques in Sheet Metal Fabrication

Sheet Metal Joining

Sheet metal joining is defined as the processes used to assemble separate sheet metal parts into a complete structure through welding, brazing, or mechanical fastening.

Welding

Welding is the primary joining method for sheet metal fabrication, offered by 93.0% of Haizol's verified factories (225 of 242). TIG welding (GTAW) is the highest-precision option, and it is commonly used on stainless steel and aluminium where weld appearance and low distortion matter. MIG welding (GMAW) is typically faster and more cost-effective for mild steel structural assemblies. Spot welding is used for high-volume thin-sheet assemblies (automotive body panels, appliance housings). Laser welding delivers the narrowest weld bead and lowest HAZ for precision enclosures.

Welding quality standards: The primary sheet metal welding standards are AWS D1.3 (arc welding of structural sheet steel <=5 mm, including galvanised), ISO 3834 (quality requirements for fusion welding of metallic materials), and AWS D17.1 (fusion welding and NDE of aerospace flight hardware - aluminium, titanium, nickel, and cobalt alloys).

Post-Processing and Finishing for Sheet Metal Parts

Sheet Metal Finishing

Sheet metal finishing is defined as the surface treatment applied after fabrication to protect against corrosion, meet cosmetic requirements, and satisfy application-specific standards (medical sterility, aerospace traceability, automotive durability).

Powder Coating

Powder coating (60-120 um, full RAL colour range) is the standard protective finish for structural sheet metal. It is a heat-cured thermosetting polymer that typically delivers better impact resistance than wet paint.

Anodising

Anodising is an electrochemical process that converts the aluminium surface into a hard aluminium oxide layer, classified under MIL-A-8625 (Aluminum Anodizers Council):

Type	Film Thickness	Hardness (HV)	Key Use
Type I (chromic acid)	0.5-2.5 um	Soft	Aerospace - minimal dimensional change
Type II (sulphuric acid)	5-25 um	Medium	General industrial, decorative, corrosion resistance
Type III (hard anodise)	25-100+ um	400-600 HV	Wear-resistant: tooling, hydraulic components, military

Passivation

Passivation is mandatory for stainless steel parts used in medical,͏͏ food-contact,͏͏ and͏͏ pharmaceutical͏͏ applications.͏͏ It͏͏ removes͏͏ free͏͏ iron͏͏ from͏͏ the͏͏ surface͏͏ using͏͏ citric͏͏ or͏͏ nitric͏͏ acid,͏͏ helping͏͏ restore͏͏ the͏͏ chromium͏͏ oxide͏͏ passive͏͏ layer.͏͏

What Are the In-house Finishing Capabilities for Sheet Metal Fabrication in China?

The in-house finishing capabilities for sheet metal fabrication companies in China are: laser͏͏ etching͏͏ 31.4%,͏͏ powder͏͏ spray͏͏ 32.6%,͏͏ painting͏͏ 26.4%,͏͏ bead͏͏ blasting͏͏ 18.2%,͏͏ passivation͏͏ 12.4%,͏͏ phosphating͏͏ 10.3%,͏͏ anodising͏͏ 8.7%,͏͏ zinc͏͏ electroplating͏͏ 8.7%,͏͏ chrome͏͏ electroplating͏͏ 6.6%,͏͏ PVD͏͏ 2.5%.͏͏ When a finish isn’t handled in-house, most factories rely on established outsource finishing partners.

Sheet Metal Fabrication for Aerospace Parts

Sheet metal fabrication for the aerospace industry requires tighter dimensional tolerances, traceable material certification, and specific process qualifications that go beyond standard commercial fabrication.

Key requirements for aerospace sheet metal suppliers:

• Material traceability: All sheet metal stock must carry mill test certificates (MTC) traceable͏͏ to͏͏ the͏͏ heat͏͏ number,͏͏ required͏͏ for͏͏ aerospace͏͏ part͏͏ manufacturing͏͏ and͏͏ AS9100͏͏ audits.
• Tolerances: Typical aerospace sheet metal tolerances are͏͏ +-0.1͏͏ mm͏͏ on͏͏ formed͏͏ dimensions͏͏ and͏͏ +-0.05͏͏ mm͏͏ on͏͏ machined/laser-cut͏͏ features,͏͏ tighter͏͏ than͏͏ commercial fabrication standards.
• Welding qualification: Aerospace welding procedures must be qualified to AWS D17.1 (fusion welding and NDE of aerospace flight hardware,͏͏ covering͏͏ aluminium,͏͏ titanium,͏͏ nickel,͏͏ and͏͏ cobalt͏͏ alloys)͏͏ or͏͏ EN͏͏ 4179͏͏ (aerospace͏͏ welding͏͏ qualification)͏͏ -͏͏ not͏͏ just͏͏ AWS͏͏ D1.1.͏͏
• Surface treatment: Aerospace aluminium sheet parts typically require anodising (Type I for minimal dimensional change, Type III for wear) or chemical film treatment (Alodine/Iridite for corrosion protection on internal structure).
• NDT (Non-Destructive Testing): Structural aerospace weldments require dye͏͏ penetrant͏͏ inspection͏͏ (DPI)͏͏ or͏͏ radiographic͏͏ inspection͏͏ (RT)͏͏ per͏͏ customer͏͏ drawings.

Specify AS9100 certification, material traceability (mill test certificates to heat number), and welding qualification to AWS D17.1 in your Haizol RFQ to filter to aerospace-qualified suppliers.

What are the Common Sheet Metal Fabrication Factory Certifications in China?

The most common certifications held by sheet metal fabrication factories in China are ISO 9001 (77.7%), ISO 14001 (22.7%), IATF 16949 (22.3%), and ISO 45001 (14.9%) - based on verified sheet metal fabrication factories in China sample dataset (n=242, February 2026).

Certification	%	What It Covers
ISO 9001	77.7%	General quality management - the baseline for any credible sheet metal supplier
ISO 14001	22.7%	Environmental management - increasingly required by EU buyers
IATF 16949	22.3%	Automotive quality - required by BMW, Ford, GM, Stellantis, Toyota, Volkswagen
ISO 45001	14.9%	Occupational health and safety
ISO 13485	5.4%	Medical device quality management system
GJB9001c-2017	4.5%	Chinese military / defence quality standard
ISO 3834	2.9%	Quality requirements for fusion welding - the welding-specific QMS standard
CE Mark	2.1%	European market conformity

Source: Haizol fabrication in China supplier sample dataset, February 2026, n=242.

For buyers shortlisting specific Chinese fabrication partners, Haizol's guide to top metal fabrication companies in China profiles 8 factories across laser cutting, CNC bending, and robotic welding. For a platform comparison, see best custom metal fabrication online platforms - which benchmarks Haizol, Xometry, Alibaba RFQ, and Made-in-China across tolerance, lead time, and supplier verification.

What Sheet Metal Fabrication Methods Are Best for Small Batch Production?

The best sheet metal fabrication methods for small batch production (1-500 parts) are laser cutting for profiles, CNC press brake bending for forming, and TIG or MIG welding for assembly - because they require no dedicated tooling investment, can be set up from a CAD file alone, and deliver production-grade part quality at prototype-level quantities.

Process selection by batch size:

Process	Minimum Practical Batch	Tooling Required	Cost per Part Trend
Laser cutting	1 part	None (CNC program only)	Flat - no tooling to amortise
CNC press brake bending	1 part	None (standard tool library)	Flat
TIG / MIG welding	1 assembly	None (jig for repeats)	Flat to slightly decreasing
CNC punching	50-200 parts	Standard tool library	Decreasing with volume
Stamping (soft tooling)	500-1,000 parts	Bridge tooling: $2,000-$10,000	Decreasing with volume
Progressive die stamping	10,000+ parts	Hard tooling: $15,000-$100,000+	Low at volume only

For custom sheet metal enclosures in small quantities, the standard process is: laser cut flat profiles → CNC press brake bend → MIG or TIG weld corners → powder coat or paint finish. This process delivers production-grade enclosures from 1-500 units without any stamping tooling.

Frequently Asked Questions

What Are the Main Sheet Metal Fabrication Techniques?

In practice, sheet metal fabrication techniques are defined as the core industrial processes, cutting, forming, joining, and finishing, used to turn͏͏ flat͏͏ metal͏͏ sheets͏͏ into͏͏ functional͏͏ parts.͏͏ Cutting͏͏ covers͏͏ laser,͏͏ plasma,͏͏ waterjet,͏͏ punching,͏͏ and͏͏ shearing.͏͏ Forming͏͏ covers͏͏ bending,͏͏ stamping,͏͏ deep͏͏ drawing,͏͏ and͏͏ spinning.͏͏ Joining͏͏ covers͏͏ TIG,͏͏ MIG,͏͏ spot,͏͏ and͏͏ laser͏͏ welding.͏͏ Finishing͏͏ covers͏͏ powder͏͏ coating,͏͏ anodising,͏͏ passivation,͏͏ and͏͏ plating.

What Is the Difference Between Laser Cutting and Plasma Cutting for Sheet Metal?

Laser cutting is defined as using a focused laser beam that produces a 0.1-0.3 mm kerf and +-0.05 mm accuracy, making it the correct choice for profiles under 25 mm. Plasma cutting is typically faster and cheaper on thick mild steel above 12 mm, but it produces a larger kerf (1.5-5 mm) and a larger heat-affected zone (1-5 mm).

What Is the Difference Between Waterjet Cutting and Laser Cutting?

Waterjet cutting is defined as using͏͏ a͏͏ high-pressure͏͏ abrasive͏͏ water͏͏ jet͏͏ to͏͏ cut͏͏ metal͏͏ with͏͏ zero͏͏ heat-affected͏͏ zone,͏͏ which͏͏ makes͏͏ it͏͏ the͏͏ correct͏͏ choice͏͏ for͏͏ titanium,͏͏ Inconel,͏͏ and͏͏ heat-treated͏͏ steels͏͏ where͏͏ heat͏͏ input͏͏ must͏͏ be͏͏ eliminated. Laser cutting is faster and lower-cost on material under 25 mm, but it does produce a small HAZ.

What Are the Most Common Sheet Metal Fabrication Defects?

The most common sheet metal fabrication defects are springback (incorrect bend angle), wrinkling (deep drawing flanges), tearing (draw ratio exceeded), burrs (worn punch/die clearance), and twist or bow (residual stress in long formed parts).

What Materials Are Most Commonly Used in Sheet Metal Fabrication?

The most common sheet metal materials are mild steel, stainless steel (304/316), and aluminium alloys (5052/6061). Based on Haizol's China sheet metal fabrication supplier sample dataset (n=242, February 2026), stainless steel is processed by 95.9% of factories (232/242), carbon steel by 93.8% (227/242), and aluminium alloy by 85.9% (208/242).

What Sheet Metal Fabrication Methods Are Best for Small Batch Production?

For small batch sheet metal production (1-500 parts), the best methods are laser cutting, CNC press brake bending, and TIG or MIG͏͏ welding.͏͏ None͏͏ of͏͏ these͏͏ require͏͏ dedicated͏͏ tooling, only a CNC program. Stamping tooling typically becomes cost-effective above approximately 500-1,000 parts.

Source Your Sheet Metal Parts Through Haizol

Getting͏͏ a͏͏ quote͏͏ starts͏͏ with͏͏ a͏͏ complete͏͏ brief.͏͏ The͏͏ more͏͏ specific͏͏ your͏͏ RFQ͏͏ is,͏͏ the͏͏ more͏͏ accurate͏͏ and͏͏ comparable͏͏ the͏͏ responses͏͏ tend͏͏ to͏͏ be.͏͏ Prepare͏͏ a͏͏ STEP͏͏ file,͏͏ a͏͏ 2D͏͏ drawing͏͏ with͏͏ critical͏͏ tolerances͏͏ called͏͏ out,͏͏ your͏͏ material͏͏ grade,͏͏ finish͏͏ specification,͏͏ any͏͏ required͏͏ certifications͏͏ (IATF͏͏ 16949͏͏ for͏͏ automotive,͏͏ ISO͏͏ 13485͏͏ for͏͏ medical),͏͏ and͏͏ quantity͏͏ tiers͏͏ for͏͏ cost͏͏ comparison.͏͏

Haizol's custom sheet metal fabrication service routes your RFQ directly to verified factories matched to your process, material, and certification requirements - drawn from a network of verified suppliers across Jiangsu, Zhejiang, and Guangdong.