Company Profile
Established in 1969, Zhejiang Shangyu Oil Seal Manufacturing Co., Ltd. (PQK) is a premier manufacturer of rubber seals with over 50 years of industry expertise. As a member of the National Standardization Technical Committees (SAC/TC35/SC3 & SAC/TC3/SC3), we are not just following standards—we are helping to define them.
Our Strengths
- R&D Excellence: Backed by a strong R&D team and 48 patents, we specialize in developing high-performance sealing solutions. Our capabilities include OEM services based on drawings or samples, as well as custom structural design tailored to specific operating conditions.
- International Quality: Certified with TS16949, we maintain rigorous quality control from rubber formulation to final inspection. Our products, including skeleton oil seals and rubber valves, feature superior metal-to-rubber bonding that meets international standards, making them a perfect alternative to imported seals.
- Trusted by Giants: We are a long-term supplier for major OEMs such as Dongfeng Nissan and Volkswagen. Our products are widely used in the automotive, construction machinery, and home appliance industries.
Product Range
We specialize in: Skeleton Oil Seals, Bearing Seals, Thermostat Seals, Agricultural Seals, High-Speed Shaft Seals, Combined Seals, Rubber Valves, Hoses, and Valve block Seals.
Partner with PQK
Experience the perfect blend of tradition, innovation, and quality. Let us be your trusted partner in sealing technology.
