Direct Sourcing and On-Ground Quality Inspections in Vietnam
Bypass digital broker markups and coordinate directly with vetted Vietnamese workshops. Enjoy up to 15-30% cost savings on production runs backed by secure, Delaware-governed contract protection and physical pre-shipment quality verification.

Alugos Company Limited
1. Sheet Metal & Fabrication
Audited facility in Binh Duong Province specializing in high-precision structural profiling and welding.
Custom Precision Machining Facilities
Real photos from verified precision engineering shops across Vietnam — CNC machining bays, turning centers, and inspection rooms.

Overview Of Workshop
Long Van Company Limited

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Huynh Duc Production Trading Services Company Limited

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Bach Tung Co Ltd

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Bach Tung Co Ltd
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Packing Area (3)
Bach Tung Co Ltd

Sample 4
Kim Phu Metal Machining Company Limited
A Tradition of Metallurgy and Craftsmanship
Metalworking in Vietnam is not a modern development. It dates back over 2,500 years to the bronze Dong Son drum builders, who cast massive drums with intricate, micro-precise geometric alignments. This ancient pride in craft forms the foundation of DEWIN's network.
Today, our audited Vietnamese partners combine this rich manufacturing legacy with modern quality standards. Every workshop operates under certified quality management protocols, providing global OEMs with reliable, precision-engineered metal, plastic, and electronic assemblies.

Technical Capabilities & Verification
Sourcing capabilities mapped directly to on-ground audited workshop capacities.
| Process | Available Materials & Equipment | Standard Tolerances & Certs | Production Lead Time | Audit StatusDolphin AuditingEvery factory undergoes a 50-point physical verification of machinery capacity, quality manuals, financial standing, and labor compliance. |
|---|---|---|---|---|
| CNC Machining | Aluminum 6061/7075, SS 304/316, Copper, POMVerified: Mazak 5-Axis VMC, Fanuc RoboDrill, Brother Speedio | ±0.005 mm (High Precision)ISO 9001:2015, AS9100D Aerospace, IATF 16949 | 5-7 Days | Audit Approved (94/100) |
| PCB Assembly | FR4, Rogers, High-TG boards, Aluminum coreVerified: Yamaha SMT Line, Vitronics Wave Soldering, Koh Young SPI | IPC-A-610 Class II/III ComplianceISO 9001:2015, ISO 13485 Medical Device | 7-10 Days | Audit Approved (96/100) |
| Sheet Metal & Bending | SPCC, SGCC, Carbon Steel, Aluminum, BrassVerified: Amada CNC Turret Punch, Bystronic Press Brake | ±0.10 mm (Standard) / ±0.05 mm (Tooling)ISO 9001:2015, AWS D1.1 Welding Certified | 5-8 Days | Audit Approved (94/100) |
| Wire Harness Assembly | Copper, PVC, Halogen-Free Insulation, TeflonVerified: Komax Alpha 530 Crimping, Schleuniger Strip/Cut Center | IPC-WHMA-A-620 StandardsISO 9001:2015, UL Certified Processing Shop | 3-5 Days | Audit Pending Verification |
CNC Machining
Audit Approved (94)Materials: Aluminum 6061/7075, SS 304/316, Copper, POM
Verified Machinery: Mazak 5-Axis VMC, Fanuc RoboDrill, Brother Speedio
Tolerances: ±0.005 mm | Lead Time: 5-7 Days
Certs: ISO 9001:2015, AS9100D, IATF 16949
PCB Assembly
Audit Approved (96)Materials: FR4, Rogers, High-TG boards, Aluminum core
Verified Machinery: Yamaha SMT Line, Vitronics Wave Soldering, Koh Young SPI
Tolerances: IPC-A-610 Class II/III | Lead Time: 7-10 Days
Certs: ISO 9001:2015, ISO 13485 (Medical)
Sheet Metal & Bending
Audit Approved (94)Materials: SPCC, SGCC, Carbon Steel, Aluminum, Brass
Verified Machinery: Amada CNC Turret Punch, Bystronic Press Brake
Tolerances: ±0.10 mm | Lead Time: 5-8 Days
Certs: ISO 9001:2015, AWS D1.1 Welding
Wire Harness Assembly
Audit PendingMaterials: Copper, PVC, Halogen-Free Insulation, Teflon
Verified Machinery: Komax Alpha 530 Crimping, Schleuniger Strip/Cut Center
Tolerances: IPC-WHMA-A-620 | Lead Time: 3-5 Days
Certs: ISO 9001:2015, UL Processing Shop
Delaware Trust Guarantee
Eliminate cross-border compliance worries. DEWIN acts as your contract holder under US law, providing federal court jurisdiction and intellectual property indemnification.
US Jurisdiction Contracts
Every purchase order is executed with our Delaware LLC. All agreements, quality covenants, and liability terms are governed by US courts, avoiding overseas legal friction.
IP Protection Standards
NDA and intellectual property drawings are securely managed on our encrypted vault. Strict confidentiality agreements are legally bound in the US, protecting proprietary designs.
Resident Engineers
Our engineering team conducts a 50-point checklist inspection before cargo loading, checking tolerances, finishing, packaging, and testing operations.
Dolphin Audited Network
Every workshop undergoes rigorous physical capacity checks, financial health monitoring, and workplace safety validation. Only approved shops receive RFQs.
Why OEMs Bypass Digital Brokers
Unlike blind broker networks that add algorithm-based margins, DEWIN ensures direct factory pricing combined with on-ground quality compliance.
Digital Broker Intermediaries
- ✕20% to 45% Algorithm Markup: Proprietary software layers margins onto every order, bloating your unit cost.
- ✕Blind Supplier Matching: The broker keeps the manufacturer anonymous, preventing direct engineering alignment.
- ✕Self-Reported QA Checklists: Auditing is relegated to basic photos uploaded by the supplier without independent verification.
DEWIN Direct Sourcing Model
- Transparent Open Books: Review the exact manufacturing cost sheets. Bypassing intermediaries yields 15-30% savings.
- Direct Supplier Engineering: Align directly with factory managers on technical drawings and tooling design.
- Physical Verification: Resident engineers verify dimensions, finishes, and tolerances before packing.
Audited Vietnam Workshop Operations
Verified machinery operating at our approved Binh Duong and Dong Nai facilities.

High-Power Laser Cutting
Fiber laser sheet steel cutting with high nesting efficiency.

Multi-Axis Bending
Multi-axis sheet metal forming for complex electronic enclosures.

Automated Weld Lines
Continuous seam welding ensuring robust structural assemblies.
Resident Quality Inspection Records
Browse video logs uploaded by our QC engineers directly from the workshop floors.
Frame Mechanical Function Test
Engineering load and slide clearance verification prior to packaging.
Tolerance Alignment Verification
Multi-point critical dimension check matching client design blueprints.
See It in Production
Real sample parts from Vietnamese factories in our audited network — custom machined and metal components documented by our resident engineers.
Related Sourcing Guides
Sourcing FAQ
How does direct matching bypass broker platform margins?✦
What is the Dolphin Audit and how is it executed?✦
Can I see real parts and factories before placing an order?✦
Who handles customs, shipping logistics, and tariff exemptions?✦
Establish Your Vietnam Sourcing Agreement
Get transparent factory costings and US legal safety protections. Bypass brokers and start your RFQ with our engineering team today.
