Custom Metal Fabrication & Stainless Steel Welding Services

A-SPARK Manufacturing delivers custom metal fabrication and stainless steel welding services for OEMs and industrial teams that need precision, consistency, and scalable production. From engineered components and welded assemblies to CNC support, finishing, quality documentation, and logistics, our team helps global manufacturers reduce risk, control costs, and move from prototype to production with confidence efficiently.

Custom metal fabrication and stainless steel welding workshop

Our Custom Metal Fabrication Services

Precision fabrication, welding, machining, casting, forging, extrusion, assembly, and quality support for scalable production programs.

Sheet Metal Fabrication

Precision sheet metal production for complex geometries, engineered components, enclosures, brackets, panels, and industrial parts requiring consistent tolerances, repeatable workflows, and scalable manufacturing support.

Stainless Welding

Custom stainless steel welding and fabrication support for durable assemblies, sub-assemblies, frames, housings, and production-ready builds that require clean execution, strength, and dependable repeatability.

CNC Machining

CNC machining adds tight-tolerance features, precision finishes, drilled patterns, threaded details, and complex part geometry using advanced equipment, proper fixtures, quality tools, and skilled engineering oversight.

Metal Casting

Die casting services produce strong, durable aluminum and zinc components with accurate complex shapes, supported by extensive in-house partnership experience in die casting, assembly, tooling, machining, and finishing.

Forged Components

Hot and cold forging capabilities support connectors, flanges, gears, shafts, sleeves, tees, valves, and other high-strength components for demanding mechanical and industrial applications.

Aluminum Extrusion

Aluminum extrusion services create solid, heat sink, semi-hollow, hollow, and multi-hollow profiles for component programs requiring lightweight strength, consistent geometry, and production flexibility.

Engineer reviewing fabrication drawings and welded parts

Our Custom Fabrication Process

Discovery and Drawing Review

Share drawings, CAD files, specifications, target volumes, material requirements, and performance expectations. A-SPARK reviews the project scope, identifies manufacturing constraints, and clarifies quality, assembly, finishing, documentation, and logistics requirements before moving into engineering planning.

Engineering and DFM Analysis

Prototype and Sample Validation

Controlled Production and Assembly

Inspection and Logistics Support

Trusted Production Partner

Success Stories

Manufacturing partners rely on A-SPARK for precision, transparency, and production-ready supply chain execution.

"After 5 years with A-SPARK, their value on-site engineering and manufacturing & assembly services remain irreplaceable. They listen, adapt quickly, and treat our success as their own priority. True long-term partnership."

Hiroshi Tanaka
The A-SPARK Difference

Why Choose A-SPARK Manufacturing?

A-SPARK Manufacturing combines engineering depth, quality discipline, and end-to-end production support.

Proven Experience

Backed by LEGE Corp’s decades of casting, assembly, tooling, machining, and production knowledge.

Fast Development

Quick design analysis and short prototyping cycles help customers move from concept to production faster.

Quality Control

ISO-aligned controls, inspection, PPAP support, and traceability reduce production and sourcing risks.

Supply Chain

Sourcing, assembly, logistics, tariff planning, and compliance support simplify complex global manufacturing programs.

Meet A-SPARK Manufacturing

Engineering-led manufacturing support for global OEM production programs.

A-SPARK Manufacturing is built on LEGE Corp’s long-standing manufacturing foundation, combining more than 40 years of experience in Taiwan with 20 years of operations in Vietnam. From its base in Bac Ninh Province and branch presence in Dongguan, the company supports customers seeking reliable production partnerships across Asia and beyond. The team’s vision is to make complex sourcing, fabrication, assembly, and logistics easier for OEMs and industrial buyers through transparent communication, engineering-driven problem solving, and strict quality management. With knowledge of local business culture, regional manufacturing networks, and global customer expectations, A-SPARK helps companies scale with confidence while maintaining precision, reliability, and accountability from concept through delivery.

40+ YearsParent-company experience in Taiwan’s aluminum and zinc die casting industry
20 YearsEstablished operations in Vietnam supporting die casting, assembly, and manufacturing
2 CertificationsISO 9001:2015 and IATF 16949 quality system alignment

Frequently Asked Questions

What is bespoke metal fabrication?

Bespoke metal fabrication is the process of designing and producing metal parts or assemblies to match a specific application, drawing, tolerance, material, finish, and production requirement. Instead of using off-the-shelf components, A-SPARK Manufacturing supports custom-engineered solutions through design review, sheet metal fabrication, welding, CNC machining, casting, forging, assembly, inspection, and logistics planning.

What materials can you fabricate and weld?

Can you support prototypes before full production?

How do you ensure fabrication quality?

Do you handle assembly after fabrication?

Which industries use your metal fabrication services?

How are lead times and logistics managed?

What information is needed for a quote?

Need Help With Specifications?

Send your questions, drawings, or specifications for practical engineering guidance.

Certified & Trusted

Awards and Recognition

ISO 9001:2015 certification badge

ISO 9001:2015

Confirms documented quality controls and continual improvement.

IATF 16949 certification badge

IATF 16949

Supports automotive quality standards and production consistency.

Quality documentation trust badge

Quality Documentation

Includes inspection reports, traceability, and compliance documentation.

Start Your Custom Fabrication Project

Share your drawings, specifications, production goals, or sourcing challenges, and our engineering team will respond with practical next steps.

Contact Us Today

For immediate assistance, feel free to give us a direct call at +8435 468 5699. You can also send us a quick email at sales@a-sparkvn.com.