At a glance
Quick sourcing summary
- Documented strengths
- Sunglasses, sunglass lenses, frames, design, production and export services [2]
- Typical buyer fit
- Fashion, polarized, sports and private-label sunglass buyers
- Category boundary
- Prescription lenses and optical frames remain on the broader Eyewear page
Evidence-backed sourcing regions
Each location below is classified by the role supported by the cited evidence. The classification does not verify an individual supplier.
Zhejiang, China
Duqiao Town sunglasses and eyewear area, Linhai
Sourcing notes
Map the lens, frame, coating, assembly and testing sites separately and verify the report scope for each model.
Why this location is included
Two independent current official records support Duqiao's exact sunglass, lens and broader eyewear production role. [1][2]
What buyers should verify
- UV and visible-light transmission
- Polarization and optical distortion
- Frame, hinge and impact performance
- Model-matched reports and labeling
Buyer risks
- Printed performance claims may be untested
- Merchant may not own production
- Different variants may fall outside one report
Why this region matters
Two independent official sources explicitly connect Duqiao with sunglass and lens production inside a full eyewear chain. [1][2]
What buyers can source here
- Plano fashion sunglasses
- Polarized sunglasses after model testing
- Sports sunglasses
- Children's sunglasses after age-appropriate safety review
- Sunglass lenses, frames and finished assembly
Manufacturing cluster vs wholesale market
Manufacturing cluster
Duqiao is retained for explicit sunglass, lens, frame and finished-eyewear production.
Wholesale or trading market
A planned wholesale-center role is not presented as completed capacity, and an eyewear-city merchant is not assumed to be the manufacturer.
Regional sourcing model
Product-specific manufacturing and export ecosystem requiring model-level optical and compliance verification.
Best for / less suitable for
Best for
- Plano and fashion sunglass programs
- Polarized and sports models with testing
- Private-label frame, lens and packaging development
- Buyers able to match reports to exact models
Less suitable for
- Prescription optical products
- Buyers accepting UV400 printing as proof
- Orders without impact, optical and chemical review
- Sellers whose production address cannot be verified
How to verify that a supplier is connected to this cluster
- Specify lens material, tint, visible-light transmission, UV performance and polarization where required.
- Test optical power, prism, distortion and polarization on the exact ordered models.
- Define frame material, hinge-cycle, impact, plating, corrosion and finish requirements.
- Assess nickel release and restricted substances for skin-contact parts where relevant.
- Match test-report model coverage, construction and destination-market requirements to the order.
- Confirm labels, warnings, packaging and any children's product requirements.
- Separate lens, frame, coating, assembly, testing and sales addresses before approving a supplier.
Buyer risks and caveats
- UV400 or polarized printing does not prove measured performance.
- A CE mark alone does not prove complete product conformity or report scope.
- Lens, frame, coating and assembly may be performed by different companies.
- Fashion-market sellers may not own the production or testing process.
This guide provides sourcing research, not legal, compliance or supplier-safety guarantees.
Latest documented developments
These updates describe documented regional activity. Planned or under-construction projects are not treated as completed capacity.
Duqiao Town
Zhejiang documented a Duqiao chain spanning R&D, design, production and sales with explicit sunglass and lens output. Source-reported market shares are not repeated as independent conclusions. [2]
Visit and map guidance
Use Duqiao as the sunglass-specific production reference. Obtain separate addresses for lenses, frames, coating, assembly, testing, packing and any showroom before visiting.
Duqiao Town, Linhai, Zhejiang
Linhai, Zhejiang
Duqiao Town sunglasses and eyewear area
Map the lens, frame, coating, assembly and testing sites separately and verify the report scope for each model.
28.766, 121.496
Review location evidenceMap links are provided for location reference. Industrial cluster boundaries may not match official administrative boundaries. Always verify supplier addresses before visiting.
Related sourcing regions
Editorial evidence
Sources & Evidence
Each source is mapped only to the claims it supports. External links do not imply affiliation or endorsement.
Tax services support Duqiao's eyewear industry
Zhejiang Provincial Tax Service / China Taxation News
- Published
- 2024-07-03
- Accessed
- 2026-07-29
- Source type
- Central government tax authority
What this source supports
- Duqiao has eyewear manufacturing and export activity
- Sunglasses are an explicit local product and trade focus
- Performance claims remain product-specific
Manufacturing and planned wholesale roles are kept separate.
Open source linkLinhai eyewear manufacturing advances through AI and optical innovation
Zhejiang Economic Information Center
- Published
- 2025-07-02
- Accessed
- 2026-07-29
- Source type
- provincial government research
What this source supports
- Duqiao has an integrated sunglass supply chain
- Sunglass and lens production are explicit
- Supplier capability and testing remain unverified
Supports an independent Sunglasses route distinct from Danyang and Ouhai on the parent Eyewear page.
Open source linkReview notes
- What was verified
- Two independent current authoritative records support Duqiao's sunglass, lens and eyewear production role.
- What remains uncertain
- Supplier-level process ownership, model coverage and market-specific compliance remain unverified.
- What buyers should confirm
- Confirm UV, transmission, polarization, optical values, frame materials, impact, reports, labeling and exact production sites.
- Last reviewed
- 2026-07-29
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Industrial belt data is updated based on public information, buyer feedback and manual review. Suggestions are reviewed before publication.