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Ningbo Ruifeng Sealing
Materials Co., Ltd.

China's leading manufacturer of high-performance sealing, heat insulation, and fireproof materials since 1965. Trusted by industries worldwide for reliability, innovation, and quality.

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Trusted Since 1965

Ningbo Ruifeng Sealing Materials Co., Ltd. is one of the largest manufacturers of sealing, fireproof, and heat insulation materials in China. Established in 1965, we have over five decades of experience in delivering high-quality industrial solutions.

Our production facilities span 6,500 square meters in the south factory and an additional 13,300 square meters in the north, supported by more than 200 skilled employees. In 2005, we expanded our operations by establishing a new production base in Xuyi County, Jiangsu Province, to meet growing global demand.

Our Enterprise Objective

Based on sincerity, high quality at low price strives for survival; technical innovation strives for development.

Factory Equipment Production Line Warehouse Storage Material Testing

Our Products

Comprehensive range of sealing, insulation, and industrial textiles designed for extreme environments and long-term reliability.

ASBESTOS GRAPHITE PACKING

ASBESTOS GRAPHITE PACKING

Made by asbestos yarns graphited and reinforced with stainless wire. Enhanced pressure resistance for high-pressure applications.

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PURE PTFE PACKING

PURE PTFE PACKING

Braided from pure PTFE thin yarns. Offers near-complete chemical inertia, dimensional stability, and low friction coefficient.

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CARBON FIBER WITH PTFE

CARBON FIBER WITH PTFE

Braided carbon fiber yarns treated with lubricant and PTFE. Excellent substitute for asbestos packing, ideal for heat insulation.

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ACRYLIC PTFE PACKING

ACRYLIC PTFE PACKING

High-strength acrylic fiber braided and impregnated twice with PTFE. Excellent sealing, lubrication, and chemical resistance.

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GRAPHITE PTFE PACKING WITH ARAMID

GRAPHITE PTFE WITH ARAMID

High-quality braided packing with PTFE, graphite, and Aramid fiber reinforcement. Performs reliably under high pressure and temperature.

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PTFE & ARAMID ZEBRA BRAIDED

PTFE & ARAMID ZEBRA BRAIDED

Multi-yarn zebra braid combining PTFE and Aramid. Superior lubrication and wear resistance compared to standard PTFE packing.

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CERAMIC FIBER TAPE

CERAMIC FIBER TAPE

Heat insulating material and excellent substitute for asbestos tape. Available with nickel or stainless steel wire reinforcement.

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BULK FIBERGLASS YARN

BULK FIBERGLASS YARN

Texturized under high pressure. High strength, temperature resistant, and corrosion-resistant. Ideal for industrial weaving and insulation.

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TEXTURIZED FIBERGLASS SLEEVING

TEXTURIZED FIBERGLASS SLEEVING

Made from high-quality texturized fiberglass yarns using twill braiding. Withstands continuous exposure up to 1000°F. Non-combustible.

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TEXTURIZED FIBERGLASS TAPE

TEXTURIZED FIBERGLASS TAPE

Woven with fiberglass for excellent insulation and heat resistance. Used in building waterproofing, antiseptic wrapping, and electrical coils.

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Why Choose Ruifeng Sealing?

58+

Years of Experience

Established in 1965, we bring decades of expertise in industrial sealing and insulation.

19.8K

m² Production Area

Modern facilities across north and south factories ensure high-volume, consistent output.

200+

Skilled Employees

Dedicated team focused on quality control, innovation, and customer satisfaction.

Global

Export Reach

Products trusted by clients in over 50 countries worldwide.

Frequently Asked Questions

What materials do you specialize in?

We specialize in sealing gland packing, PTFE products, asbestos alternatives (such as aramid and carbon fiber), fiberglass, ceramic fiber, expanded graphite, and heat insulation materials.

Are your products safe and environmentally compliant?

Yes. We offer dust-free asbestos products and non-asbestos alternatives like aramid, carbon fiber, and ceramic fiber to meet international safety and environmental standards.

Can you customize products for specific applications?

Absolutely. We offer custom braiding, impregnation, reinforcement, and sizing to meet your industrial requirements.

What industries use your products?

Our materials are used in petrochemical, power generation, metallurgy, shipbuilding, HVAC, and manufacturing industries.

Get in Touch

For inquiries, quotes, or technical support, visit our official website to connect with our team.

Contact Information

Phone: 86-574-63531211

Email: nbgy@gongyaosealing.com

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