Company Profile

Zhejiang Magpie Sealing Technology Co., Ltd. has been dedicated to the research and development of graphite sealing technologies. Our main products include a wide range of high-performance seals such as Low Emission Graphite Packings, gaskets,Graphite Sheet Series, Graphite Sealing Ring for Ball Valve Seats. These products are widely used in various industries including oil, chemical, power, and metallurgy, and have earned high praise and trust from customers both at home and abroad.

In today's rapidly developing industrial environment, the demand for high-quality, eco-friendly sealing solutions continues to grow. As a leading manufacturer focused on graphite sealing technology, we are always committed to providing innovative and reliable sealing solutions to global customers. With years of experience and continuous technological development, our products not only excel in quality but also significantly reduce emissions, contributing to the sustainable development of the industrial ecosystem.


*The company will move to a new factory in 2025

Quality and Certifications:

We understand the importance of product quality to our customers, so we strictly follow international standards and industry norms during the production process. Our products have passed multiple international authoritative certifications such as ISO15848, API622, TA-LUFT, ensuring that each product meets high-quality standards and complies with low-emission standards.



Customer Collaboration and Services:

Our products have been widely adopted by well-known valve manufacturers and engineering projects, including ChaoDa Valve (China), Zhenjiang Petrochemical Engineering, Dalian DaGao Valve, and others. Through close cooperation with these companies, we continuously optimize product performance to ensure stability and reliability in complex operating conditions.

To better serve our customers, we also provide customized solutions and installation and testing services for valve products. Simply provide the necessary valve components, and we will complete the assembly work and conduct professional testing to ensure the products reach their optimal working state.

Research and Development Capabilities:

Having strong independent R&D capabilities is one of our major advantages. We have designed and manufactured a series of advanced automated production equipment, which has not only greatly improved production efficiency but also ensured the stability and consistency of our products. For special product requirements, we can adjust production line configurations according to specific needs to meet personalized customer demands.

Corporate Vision:

Our vision is to become a global leader in graphite sealing solutions, promoting the progress and development of the entire industrial environment through high-quality, cost-effective products. We firmly believe that through joint efforts with our customers, we can achieve a more green and sustainable future.

Looking to the future, we will continue to uphold innovation and service upgrades, joining hands with every partner to create a more efficient and environmentally friendly industrial ecosystem. If you have any needs or questions regarding graphite sealing technology, please feel free to contact us. We look forward to creating a bright future together!