Rubber Seals & O-Rings Expert: Custom NBR, FKM, EPDM Solutions | Longcheng

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1,350 New Custom Rubber Parts in One Year: Inside Xingtai Longcheng Sealing's 8,000-Mold Custom Manufacturing Facility
Aug 31, 2026

Xingtai Longcheng Sealing Co., Ltd., a custom rubber parts manufacturer in Hebei, China, delivered 1,350 new custom rubber parts in the past year — one of the strongest indicators of its design-to-production speed. Founded in 2009, the company ...

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O-Ring Material Selection Guide: NBR vs FKM vs EPDM vs Silicone for Custom Rubber Parts
Aug 24, 2026

An O-ring costs a few cents. The downtime it causes when it fails can cost thousands. In most cases, the seal itself is not the problem — the material was never the right match for the application. Temperature, fluid media, pressure, and duty c...

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Our factory specializes in custom rubber washer production, including molding and cutting.
Aug 15, 2026

Our factory specializes in custom rubber washer production, including molding and cutting.Covering countries such as the United States, Europe, and Japan. Customized rubber gaskets are our strength. We can provide you with professional design dr...

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A leading manufacturer of rubber sealing products, with 17 years of manufacturing experience and a 20,000-square-meter factory.
Aug 07, 2026

A leading manufacturer of rubber sealing products, with 17 years of manufacturing experience and a 20,000-square-meter factory. Our company specializes in the production of custom rubber gaskets, offering NBR, EPDM and silicone materials. We are ce...

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ISO9001 Certified: Ensures consistent quality and reliability.
Jul 31, 2026

ISO9001 Certified: Ensures consistent quality and reliability.Wide Material Options: Choose from NBR, EPDM, FKM, and more.High Temperature Rubber Gasket Seal Compression Customized EPDM HNBR FKM Silicone Hardness Rubber Products

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High-Quality Materials: Made from durable rubber, silicone, and other selected materials.
Jul 24, 2026

High-Quality Materials: Made from durable rubber, silicone, and other selected materials.Wide Application: Suitable for pipeline seals, automotive seals, aerospace seals, and food-grade applications.Customization Services: Offered for special require...

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