01 · Precision optics
Optical components & lens assemblies
Windows, mirrors, prisms, powered lenses and coatings, plus visible/VIS–NIR, MWIR and LWIR assemblies.
China-based B2B trading & sourcing
Optical Components, Fiber Cables & Transceivers
TUOLAN TRADE sources precision optical components, visible-light and infrared lens assemblies, fiber optic cables and optical transceivers for international B2B buyers. We help clarify technical requirements, compare supplier quotations and coordinate sample evaluation, inspections and export delivery with selected manufacturing partners in China.
Drawing & interface review
Factory visits by appointment
Supplier-audit support
Project-specific verification
Focused B2B product areas
Two technical sourcing categories
Each project starts from the application, specification, target market and quantity. Performance, MOQ and compliance statements are confirmed against current supplier evidence.
02 · Fiber connectivity
Fiber cables & optical transceivers
Fiber ribbons and compact cables, 10G–100G optical transceivers, active optical cables (AOC) and direct-attach copper cables (DAC), reviewed against construction and equipment requirements.
Beyond the catalog: for products outside these two families — camera robots, smart pet devices and other China-sourced categories — see China sourcing agent services for optics, fiber and smart devices.
Featured products
Explore optics and fiber connectivity. Open a product for full specifications.
How projects move forward
From requirement to approved supply
1. Define
Share the drawing, optical or network interface, application, quantity and required tests.
2. Review
Clarify technical risk, supplier route, customization and commercial terms.
3. Validate
Review the sample, measurement report, mechanics and packaging.
4. Supply
Freeze acceptance criteria and coordinate production and delivery.
On-site verification
Factory visits and supplier audits are welcome.
Qualified buyers may arrange a factory visit or supplier audit by appointment. The visit scope, facility and documents are confirmed against the selected project and supplier before the schedule is fixed.
Direct business contactsales@tuolango.com
Send your company, product, expected quantity, visit purpose and preferred dates.
Ready to review a technical project?
Send the specification, target quantity and market. We can also discuss an on-site factory visit or supplier audit.
News & insights
Latest articles
Industry news, technical sourcing notes and exhibition coverage from the TUOLAN TRADE editorial desk.
Oct 17, 2026
Optical Cleaning Qualification: Approve a Material-Specific Method Before Production
An optical cleaning method should be approved for the actual substrate, coating and assembly materials. A cleaner that works on one loose…
Oct 17, 2026
Plate Beamsplitter Integration: Give the Ghost Beam Its Own Acceptance Test
A plate beamsplitter needs an acceptance check for the useful split beams and for unwanted secondary reflections. Define which beam is measured,…
Oct 17, 2026
Telecentric Measurement Validation: Separate Scale Stability from Image Sharpness
A telecentric measurement setup should be checked for both scale stability and usable image quality over the permitted object-depth range. Reduced perspective…