YIWU GREAT SEAL RUBBER PRODUCTS COMPANY

About Us

GREAT SEAL has focused on rubber sealing soluctions and oriented to improve product quality and reduce costs, and solve customer sealing product problems. Efficient teamwork, advanced production equipment and testing equipment provide you with efficient communication, product technical services, to ensure that the products provided meet the technical requirements, physical performance requirements and actual installation needs. Under the TS16949 quality management system, the company implements 5S management,core technology of rubber formulation, skeleton stamping and mold manufacturing process, and the sealing product quality meets international standards.

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  • Choosing the Perfect O-Ring: A Survival Guide for Engineers
    Choosing the Perfect O-Ring: A Survival Guide for EngineersIntroduction: The Cost of a Poor SealA failed O-ring can shut down a factory, delay a space launch, or contaminate a vaccine batch. Selecting the right O-ring isn’t just about specs—it’s about risk management. This guide decodes the art a
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  • O-Rings: The Tiny Giants of Engineering That Keep the World Sealed
    O-Rings: The Tiny Giants of Engineering That Keep the World SealedIntroduction: The Invisible GuardiansImagine a world where rockets leak fuel, car engines spew oil, and your coffee maker drips water onto the counter. This chaos is prevented by a simple yet extraordinary component: theO-ring.
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  • A Quick Guide for Engineers and Mechanics to Select Right Oil seals
    A Quick Guide for Engineers and MechanicsSelecting the rightoil sealis critical for optimal machinery performance. With various materials, designs, and applications, how do you pick the best one?Key Factors to Consider:Material– Nitrile rubber (NBR) is common for general use, whil
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  • Why Oil Seals Matter More Than You Think
    Why Oil Seals Matter More Than You ThinkWhen we think about machinery and engines, components like pistons, gears, and belts often steal the spotlight. However, one small but crucial part keeps everything running smoothly—theoil seal.Oil seals, also known as shaft seals, prevent lubrica
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  • What kinds of rubber we choice for rubber seals
    When selecting rubber materials for seals (e.g., oil seals, gaskets, O-rings), the choice depends on the operating environment, temperature range, chemical exposure, pressure, and mechanical stress. Below are themost common rubber typesused for seals, their properties, and typical applic
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  • Rubber Gaskets and O-Rings: A Comparative Analysis
    Rubber gaskets and O-rings are two widely used sealing components in industrial applications. Although both serve to prevent fluid leakage and isolate contaminants, they exhibit significant differences in structural design, application scenarios, and working principles. Below is a detailed analysis
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  • Automotive Oil Seals: Functions and Applications Explained
    Automotive Oil Seals: Functions and Applications Explained1. Definition & PurposeAnautomotive oil seal(also called a shaft seal or rotary seal) is a critical component designed to:Prevent leakageof lubricants (oil, grease) from rotating shafts or bearings.Block contaminants&nbs
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  • Differences Between Dynamic Seals and Static Seals
    Dynamic seals and static seals are two types of sealing elements with distinct applications, designs, and performance requirements. Below is a detailed comparison:1. Application ScenariosDynamic SealsPurpose: Used between components with relative motion (e.g., rotating shafts, reciprocating pistons,
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