Supplier Spotlight #25: Long Van Company Limited
CNC lathe turning + bending machine fabrication + documented NG (non-conforming) parts segregation quality system — all verified on-site by Dewin's audit team in Vietnam.
Long Van Company Limited — Workshop Overview. Photo taken by Dewin on-ground audit team.
Factory Overview — Long Van Company Limited
Long Van Company Limited is a Vietnam-based manufacturer specialising in CNC lathe turning and sheet metal bending. Dewin's on-ground audit team completed the full 50-point Dolphin Audit, physically verifying equipment, quality systems, and export compliance capability.
The factory operates multiple CNC lathe machines for precision turned components — shafts, bushings, connectors, and fittings — alongside a bending machine for sheet metal and tube fabrications. This dual-process capability means international buyers can source both turned and bent components from a single audited Vietnam supplier.
What Dewin's auditors noted: a clearly labeled, actively used NG (Non-Good) parts segregation box — a physical quality system showing that defective parts are identified, isolated, and documented before any shipment leaves the factory floor. This is a reliable quality culture indicator that directly reduces buyer risk.
Factory Quick Facts
Real Factory Photos — On-Site by Dewin Audit Team
Factory exterior
CNC lathe machine #1 — precision turning
CNC lathe machine #2 — multi-machine capacity
Sheet metal bending machine — verified operational
NG (Non-Good) parts box — quality segregation system
Workshop overview — production floor
All photos taken by Dewin's on-ground audit team. No stock photography.
🔍 Quality Signal: NG Parts Segregation — What Dewin Verified
Dewin's auditors confirmed a physically labeled, actively used NG (Non-Conforming Goods) parts segregation area at Long Van Company Limited. Here's why global buyers should care:
NG System: Factory With vs Without
| Quality Dimension | Factory Without NG System | Long Van (NG Confirmed) |
|---|---|---|
| Defect Identification | Operator discretion — often inconsistent | Defined criteria for what constitutes NG |
| Physical Isolation | Defects mixed with conforming stock — shipment risk | NG box physically separate — cannot be shipped accidentally |
| Disposition Process | No formal rework/scrap decision | Documented rework, re-inspect, or scrap workflow |
| Defect Trend Data | No historical defect count or analysis | NG count enables trend tracking and root cause review |
| ISO 9001 Alignment | Non-compliant with Clause 8.7 | Aligned with ISO 9001 Clause 8.7 |
| Buyer Risk | Non-conforming part found on your dock | Non-conforming parts caught and isolated before shipment |
🐬 Dolphin Audit — Pillar 3: Quality Systems
NG parts segregation is evaluated under Pillar 3: Quality Systems of Dewin's 50-point Dolphin Audit. Our auditors physically observed the NG box in active use — parts inside labeled, location clearly marked, separate from conforming finished goods storage. This contributed to Long Van's Pillar 3 pass rating.
50-Point Dolphin Audit — Full Results
Dewin's Dolphin Audit evaluates 5 pillars — 10 criteria each. Results for Long Van Company Limited:
| Audit Pillar | Key Findings | Global Buyer Relevance | Status |
|---|---|---|---|
| P1: Facility & Safety | Organized workshop, adequate machine spacing, basic safety measures | Safe facility = production continuity — no injury-related shutdowns | ✅ Pass |
| P2: Equipment & Capacity | CNC lathe ×2 verified operational; bending machine confirmed in active production use | Equipment capacity for production volume confirmed | ✅ Pass |
| P3: Quality Systems | NG parts segregation box confirmed — labeled, physically separated from conforming stock, in active use | Non-conforming parts caught before shipment — ISO 9001 Clause 8.7 aligned | ✅ Pass |
| P4: Workforce & Management | Experienced operators, stable management, responsive communication via Dewin liaison | Stable workforce = consistent output quality across repeat orders | ✅ Pass |
| P5: Export Compliance | VCCI Form B COO eligibility confirmed — genuine Vietnam manufacturing with domestic material sourcing documentation | $0 Section 301 tariff eligibility and FTA access across CPTPP/EVFTA/RCEP/UKVFTA markets | ✅ Pass |
Dolphin Audit is Dewin's proprietary 50-point factory evaluation system. Results reflect condition at time of audit. Follow-up audits conducted for ongoing program partners.
FTA Advantage — Vietnam's 16+ Trade Agreements
Parts manufactured at Long Van Company Limited benefit from Vietnam's extensive FTA network. Certificate of Origin managed by Dewin per shipment.
Comprehensive & Progressive Agreement for Trans-Pacific Partnership
Markets: Japan, Canada, Australia, New Zealand, Mexico, Singapore, Malaysia, Chile, Peru
Benefit: Significant duty reductions on CNC turned parts and sheet metal fabrications
CO Type: CPTPP CO Form (self-declared or VCCI)
EU-Vietnam Free Trade Agreement
Markets: All 27 EU member states
Benefit: 0–5% duty on most manufactured goods vs MFN rates — strong advantage for EU buyers
CO Type: REX (Registered Exporter) or EUR.1 Certificate
Regional Comprehensive Economic Partnership
Markets: ASEAN (10) + China, Japan, South Korea, Australia, New Zealand
Benefit: Intra-regional duty reduction for buyers sourcing for ASEAN or Northeast Asia distribution
CO Type: RCEP Form CO
UK-Vietnam Free Trade Agreement
Markets: United Kingdom (post-Brexit)
Benefit: Preferential duty rates for UK buyers on manufactured parts and fabrications
CO Type: UKVFTA CO (issued by VCCI)
For US buyers: Vietnam-origin goods carry $0 Section 301 tariff (China-specific under Trade Act of 1974). Dewin issues VCCI Form B for every shipment.
Sourcing Channel Comparison
| Factor | Dewin + Long Van | Alibaba Direct | Trade Fair Contact | Direct Factory |
|---|---|---|---|---|
| NG system verified on-site | ✅ Dolphin Audit confirmed | ❌ Photos only | ❌ Not checked | ❓ You must verify |
| 50-point factory audit | ✅ Completed | ❌ None | ❌ None | ❌ None |
| Real factory photos (on-site) | ✅ 6 on-site photos | ⚠️ Often marketing shots | ⚠️ Booth photos only | ❓ Factory dependent |
| COO documentation (FTA/VCCI) | ✅ Managed by Dewin | ⚠️ Buyer manages | ⚠️ Buyer manages | ⚠️ Self-managed |
| Pre-shipment inspection | ✅ AQL per ISO 2859-1 | ❌ Extra cost | ❌ Not included | ❌ Separate contract |
| English response within 24h | ✅ Dewin liaison | ⚠️ Varies | ⚠️ No ongoing contact | ❓ Factory dependent |
How Dewin Sources from Long Van — 6-Step Process
RFQ Submission
Submit drawings and specs. Dewin prepares a detailed English RFQ for the factory, eliminating translation risk on tolerances, materials, and finishes.
Audit on File — No Qualification Delay
50-point Dolphin Audit already completed. Long Van's NG system, equipment, and COO capability are pre-verified — no waiting for qualification.
Price Negotiation
Dewin negotiates pricing and lead time with factory management, benchmarking against our 179+ factory network.
First Article Inspection
Dewin's on-ground team inspects the first article against your drawing before production approval — dimensions, material, and finish verified.
Pre-Shipment Inspection + NG Audit
AQL sampling per ISO 2859-1 Level II conducted on-site. NG segregation system audited — confirms no non-conforming parts in the shipment lot.
COO + Full Documentation Package
VCCI Form B (US Section 301) or applicable FTA CO form issued per your target market. Full documentation package prepared for customs clearance.
Source Audited CNC Turned & Bent Parts from Vietnam
Dewin's on-ground team manages factory qualification, first article inspection, pre-shipment inspection, and COO documentation — from a network of 179+ Dolphin Audit-verified Vietnam factories.