About Us

Established in 2008, RUIYI SEAL has grown up to one of the leading manufacturer and exporter of flexible graphite sealing materials and gaskets in China. We take great pride in manufacturing and supplying quality products to our customers!

As a professional and experienced company, relying on our efficient managing team, strong technique support and experienced workers. We have got rich experiences in the field of flexible graphite products. RUIYI SEAL manufactures a variety of flexible graphite foils, reinforced graphite sheets, braided packings,  graphite gaskets and graphite packing rings to meet all requirements from customers. All our products are made of flexible expanded graphite and used in high-temperature sealing applications in oil and gas, shipbuilding, automotive, power station, chemical and petrochemical industries.

RUIYI SEAL owns the most advanced and environmental friendly expandable graphite production line, graphite foil production line, and gasket processing equipment. our products are meet a wide range of global standards. Our strong R&D team always devotes efforts to the full range of flexible graphite products. All of gaskets and gasket materials are derived from a precise design, manufacturing and testing process which assures good functions, stable quality, fast and punctual delivery, as well as competitive pricing. We have hence gained a prestigious success and recognition among our customers in the world.

Our Products

Ruiyi Seal has nearly 20 years rich experience in manufacturing and developing full range of flexible graphite sealing materials and gaskets

  1. Graphite Foil

    • Nuclear grade graphite foil
    • Industry grade graphite foil
    • Low sulfur content graphite foil
    • Oxidation and corrosion resistant graphite foil

  2. Graphite Tape

    • Plain graphite tape
    • Plain graphtite tape with self-adhesive backed
    • Corrugated graphite tape
    • Corrugated graphite tape with self-adhesive backed

  3. Reinforced Graphite Sheet

    • Reinforced graphite sheet with SS304/Ss316 tanged insert
    • Reinforced graphite sheet with carbon steel tanged insert
    • Reinforced graphite sheet with SS304/SS316 foil insert
    • Reinforced Graphite Sheet with wire mesh insert
    • Reinforced Graphite Sheet with glass fiber insert
    • Reinforced Graphite Sheet with Aluminium foil insert
    • Reinforced Graphite Sheet with Nickel foil insert

  4. Gaskets

    • Reinforced Graphite Gasket
    • Spiral Wound Gasket
    • Corrugated Metal Gasket
    • Ring Joint Gasket
    • Non-asbestos Gasket
    • Double Jacketed Gasket

  5. Braided Packing

    • Graphite Packing with Inconel Wire
    • PTFE Packing
    • Graphite PTFE Packing
    • Carbon Fiber Packing
    • Carbonized Fiber Packing
    • Graphite PTFE Packing with aramid corner

Our Mission

Ruiyi Seal is committed to providing superior quality and exceptional customer support in all aspects of our business. We believe this originates from everything that we do, and we are committed to the timely delivery of sealing materials best-suited to our customers’ needs in the most efficient, cost-effective manner. We deliver on these goals through continuous optimization of our processes, maintaining the lowest possible overhead, and a quality mindset determined to achieve ever-higher quality standards. Everyone at Ruiyi Seal is a vital contributor to this mission.


Brief History of Our Company


Established sales office and factory in Ningbo


2018 ACHEMA Exhibition in Frankfurt Germany


Successfully applied REACH and RoHS Certifications to all our products


ISO 9000 implemented in all product control


Established sales office in Hongkong