Supplier qualification
Certificates & Test Reports
Review our management system certificates and product test reports for supplier evaluation. Each document is identified by its scope, certificate or report number, and issue date.
Request a quote01 / SYSTEMS
4 management system certificates
Certificate holder and certified scope.
Review documents →03 / INTELLECTUAL PROPERTY
8 intellectual property records
Patent, software copyright and trademark documents.
Review documents →Management system certificates
Certificate holder: Hefei Yuannai Pneumatic Equipment Co., Ltd.
Automotive quality management
IATF 16949:2016
NQA
Certificate: NQA T208721 · IATF 0604261
Certificate dates: 16 May 2026 – 15 May 2029
Certified scope: Production of automotive plastic oil-guide tubes and air tubes. Product design excluded.
IATF USI: GHF3NA. Chinese original.
View certificate · PDF
Quality management system
ISO 9001:2015
Anhui Zhongke Funeng Certification Co., Ltd.
Certificate: 108425Q0117R0S
Certificate dates: 29 Dec 2025 – 28 Dec 2028
Certified scope: Sales of polyurethane tubing.
GB/T 19001-2016 / ISO 9001:2015. Chinese original.
View full certificate
Environmental management system
ISO 14001:2015
Anhui Zhongke Funeng Certification Co., Ltd.
Certificate: 108425E0126R0S
Certificate dates: 29 Dec 2025 – 28 Dec 2028
Certified scope: Sales of polyurethane tubing and related management activities.
GB/T 24001-2016 / ISO 14001:2015. Chinese original.
View full certificate
Occupational health & safety
ISO 45001:2018
Anhui Zhongke Funeng Certification Co., Ltd.
Certificate: 108425S0121R0S
Certificate dates: 29 Dec 2025 – 28 Dec 2028
Certified scope: Sales of polyurethane tubing and related management activities.
GB/T 45001-2020 / ISO 45001:2018. Chinese original.
View full certificateSGS RoHS test reports
Independent chemical testing for the submitted samples against the ten restricted substances listed in the report’s EU RoHS requirements. Full eight-page originals are available below.
SGS · RoHS · 8-page report
PU tubing · model 1065
Report: SHAEC24003751102
Report date: 7 March 2024
Tested sample: Polyurethane (PU), model 1065, part PU-2395
RoHS results apply to the sample identified above.
View full SGS report · PDFSGS · RoHS · 8-page report
Polyether antistatic tubing
Report: SHAPH24011336701
Report date: 5 June 2024
Tested sample: Polyether antistatic tube, 1/2-inch specification
RoHS results apply to the sample identified above.
View full SGS report · PDFRoHS reference: 2011/65/EU Annex II, amended by (EU) 2015/863. ND: below the detection limit. The polyether report covers restricted substances, not antistatic performance. Originals are in Chinese.
Patents, software copyrights & trademarks
Additional company intellectual-property records for supplier background review. The supplied scans concern the named devices, software and marks. They are separate from the tubing management-system certificates and sample-specific test reports above. Current legal status has not been independently verified; the original documents govern.
Utility-model patent — pneumatic press with replaceable head
Supplied patent certificate front-page scan. Device-related registration; request the complete patent record and current status if relevant to your review.
View original certificate scan ↗
Utility-model patent — pneumatic pressure regulator
Supplied patent certificate front-page scan. Device-related registration; request the complete patent record and current status if relevant to your review.
View original certificate scan ↗
Utility-model patent — gas-liquid booster
Supplied patent certificate front-page scan. Device-related registration; request the complete patent record and current status if relevant to your review.
View original certificate scan ↗
Software copyright — train vacuum circuit breaker pneumatic control
Registration concerns the named software and version. Refer to the supplied Chinese original for the copyright holder and registration details.
View original certificate scan ↗
Software copyright — pneumatic press testing and control
Registration concerns the named software and version. Refer to the supplied Chinese original for the copyright holder and registration details.
View original certificate scan ↗
Software copyright — pneumatic equipment design
Registration concerns the named software and version. Refer to the supplied Chinese original for the copyright holder and registration details.
View original certificate scan ↗
AIR PASSAGE trademark registration
AIR PASSAGE registration document. Refer to the original for the registered mark, goods class and registration period.
View original certificate scan ↗
AIR PASSAGE figurative trademark registration
AIR PASSAGE registration document. Refer to the original for the registered mark, goods class and registration period.
View original certificate scan ↗QUALITY DOCUMENTATION
Manufacturing & inspection controls
Alongside certificates and test reports, company procedures define equipment maintenance and incoming, process and finished-product inspection. Discuss the applicable revision and records with our team when reviewing a supply project.
Equipment management
Daily checks, planned maintenance, repair records and equipment histories.
YN-SOP-060-010 · A/0
Incoming inspection
Supplier-document review, material identification, inspection results and traceability controls.
YN-SOP-070-002 · A/0
Process inspection
Drawing revisions, measurement-equipment status, recorded inspection findings and nonconforming-item control.
YN-SOP-070-003 · A/0
Finished-product inspection
Tubing appearance, dimensions, ends, marking and packaging; pressure, burst or bending checks as required by the drawing and order.
YN-SOP-070-004 · A/1
Prepare a product-specific quality review
Send the tubing material and model, OD × ID, drawing revision, operating conditions and required inspection records. Our team can review the applicable inspection plan and documentation with you.
Discuss inspection requirementsNeed documents for supplier approval?
Send your tubing model, size, material, application and required standard. We will help identify the relevant certificate, test report or technical specification for your purchasing review.
Request project documents