Certificates & Honors

Quality is the cornerstone of Dongfang Yoyik Engineering Co., Ltd. Our commitment to excellence is backed by international certifications and long-standing partnerships with major energy groups.

Quality Management System

ISO 9001:2015 Certification

Our entire manufacturing and supply process strictly adheres to the ISO 9001 international standard. This ensures that every product, from turbine components to sealing materials, undergoes rigorous quality control and traceability.

Industry Honors & Patents

We continuously invest in R&D, resulting in multiple utility model patents and industry recognition for:

Innovation in high-temperature sealing technology.
Advanced hydraulic filtration system optimization.
Enterprise of "Observing Contracts and Valuing Credit".