Documented manufacturing qualifications and product references.
The source materials include business license, quality management certification, product standards and project performance records. Full qualification material is available as a PDF download.
Quality management
Company materials state long-term ISO quality management certification history and a quality policy focused on continuous improvement.
Business registration
Corporate registration and operating qualification documents are included in the qualification archive.
Qualification archive
Download the complete certification PDF for detailed certificates, standards and project reference documents.
Referenced standards in source material
Source documents reference national and industry standards for O-rings, oil seals and custom-profile rubber seals, including HG/T and GB/T standard series. Specific compliance should be confirmed against the required product drawing and purchase specification.