Yes. We define the scope around product structure, functions, materials, known risks, target market and your brand requirements. The plan can cover development samples, pilot production and mass-production verification.

Our laboratory supports durability and life-cycle checks, tensile and structural testing, waterproof verification, electrical and charging checks, temperature and humidity conditioning, acoustic testing and other product-specific inspections.

Testing should start during sample development, not after mass production. Early validation gives our engineering team time to correct structural, material or performance risks before tooling and production decisions become costly.

Sample quantity depends on the test type, product risk, development stage and agreed acceptance criteria. We confirm the quantity and test sequence with you before validation begins.

Yes. We can verify product sealing under agreed conditions and check charging behavior, current and operating stability according to the actual product design and intended product claim.

Failed results are reviewed with engineering and production teams. We identify likely causes, implement corrective action and repeat the agreed verification before release.

Documentation can include inspection records, test results, agreed acceptance criteria and project-specific supporting files defined for the order and target market.

Yes. When independent certification or a specific external report is required, WINYI can coordinate samples and documentation with an agreed third-party testing organization.

Yes. WINYI reviews the destination countries and sales channels with the buyer and confirms where in-house or third-party verification is appropriate.

Share the product concept, specification, target market, expected order plan and main quality concerns. WINYI will review the information and recommend the next sample, testing and documentation steps.