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Precision Rubber Seals & Custom Parts

Shenzhen Jiuhong Century Seal Technology Co., Ltd. – Over 20 years of expertise in rubber O-rings, gaskets, oil seals, and customized rubber components for automotive, industrial, medical, and electronic applications.

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About Jiuhong Seal

Shenzhen Jiuhong Century Seal Technology Co., Ltd. is located in Shenzhen, China. Our company specializes in the technology development, production, and sales of rubber seals. With core team members having over 20 years of experience in the rubber industry, we bring deep expertise in product and mold design, material selection, technology development, quality inspection, and customer management.

Founded in 2006, we are committed to delivering extremely high-quality rubber sealing solutions with reliable after-sales service. Our products are exported to many countries and trusted across industries including automotive, industrial machinery, medical equipment, electronics, pipelines, valve cores, and gearbox maintenance.

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Customized Small Rubber Part

Why Choose Jiuhong Seal?

We combine decades of industry experience with cutting-edge manufacturing to deliver reliable, high-performance rubber sealing solutions.

01

Wide Range of O-Rings

Available in many sizes and rubber materials including HNBR, Silicone, ACM, and more. Compliant with AS-568, JIS B 2401, and DIN 3771 standards.

02

Customization Expertise

Professional rubber parts customization service. We design and produce seals to your exact specifications and application needs.

03

Factory Visits Welcome

We invite clients to visit our Shenzhen facility and experience our production process, quality control, and technical capabilities firsthand.

04

Quality Assurance

Complete quality control system from raw material inspection to final product testing. ISO-compliant processes ensure consistency and reliability.

Our Products

From standard O-rings to fully customized rubber seals, we offer a comprehensive range of precision rubber components for diverse industrial applications.

Standard JIS B2401 HNBR Rubber O-Ring

JIS B2401 HNBR O-Ring

High-performance rubber O-ring compliant with Japanese standard JIS B 2401. Made from HNBR for excellent heat and oil resistance.

Standard | HNBR | JIS
Customized Small Rubber Part

Custom Small Rubber Part

Precision-engineered small rubber components tailored to your design. Ideal for electronics, medical devices, and sensors.

Custom | Various Materials
Customized Rubber Seal

Custom Rubber Seal

Fully customized rubber seals for unique applications. We handle design, mold creation, and production.

Custom | All Sizes
Customized Rubber Seal

Precision Rubber Gasket

Durable rubber gaskets for sealing joints in pipelines, valves, and industrial equipment. Resistant to pressure and temperature.

Gasket | NBR, EPDM, Silicone
Japanese Standard ACM O-Ring

ACM Polyacrylate O-Ring

Japanese standard ACM rubber O-ring with excellent resistance to heat, oil, and ozone. Suitable for automotive transmission systems.

ACM | JIS | High Temp
Standard JIS B2401 O-Ring

Standard JIS O-Ring Set

Complete sets of standard-sized O-rings per JIS B 2401. Ideal for maintenance, repair, and OEM applications.

JIS B 2401 | HNBR, NBR
Silicone Rubber Ice Mold

Silicone Rubber Ice Mold

Flexible silicone molds for ice cubes, food, or crafts. High-temperature resistant and food-grade safe.

Silicone | Food Grade
Oil Seal

Rubber Oil Seal

High-performance oil seals for shafts and rotating equipment. Prevents leakage and contamination in engines and gearboxes.

Oil Seal | NBR, FKM
20+
Years Experience
2006
Founded
50+
Countries Served
100%
Quality Inspection

Frequently Asked Questions

Get answers to common inquiries about our products and services.

What materials do you offer for rubber seals?

We offer a wide range of rubber materials including NBR, HNBR, EPDM, Silicone, FKM (Viton), ACM, and CR (Neoprene), selected based on your application’s temperature, chemical, and pressure requirements.

Can you produce custom rubber parts?

Yes, we specialize in custom rubber parts. Provide your drawings or samples, and we’ll handle mold design, material selection, and production to meet your exact specifications.

What standards do your O-rings comply with?

Our standard O-rings comply with AS-568 (American), JIS B 2401 (Japanese), and DIN 3771 (German) standards. We also produce non-standard sizes upon request.

How do you ensure product quality?

We implement strict quality control at every stage — from raw material inspection to final product testing. Our processes include dimensional checks, hardness testing, and visual inspection under magnification.

Do you offer factory visits?

Yes, we welcome clients to visit our Shenzhen factory to observe our production line, quality control procedures, and technical capabilities. Please contact us to schedule a visit.

Get in Touch

Contact us for product inquiries, custom orders, or factory visits.

Phone: +86-181-2456-9542

Email: [email protected]

Address: No.4, Shenlong West Lane, Pingshan, Shenzhen, GD, 518122, China

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