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Who We Are

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Who we are About GW Seal

GW Seal, fully named as Ningbo Guowei Mechanical Seals Co., Ltd., is building on the foundation of GuoWei mechanical seals Component Factory which was established in 2001. For over 20 years, GW Seal has been focused on providing our global customers with high quality products and efficient service, which has earned a reputation as a trusted partner for businesses in need of reliable and advanced mechanical seal solutions.


At GW Seal, we offer a wide range of high-quality mechanical seals applied in a diversity of pumps, mixers, agitators, compressors, valves, turbines, and other rotating machines in industries such as oil and gas, chemical industry, mining and minerals, etc. Compared to the well-known brand such as John Crane, EagleBurgmann, Vulcan, Roten, our alternatives are guaranteed to offer the same quality but at a more affordable price.

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  • 1500
    of product types
  • 2000
    of warehouse
Company Appearance
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Why choose us

We believe in building lasting partnerships with our clients based on mutual trust and cooperation.
-- Yuanzhong Chen (founder of GW Seal)
  • 01

    We have

    Accumulated more than 20 years of professional experience, we offer customized service give professional technical advice on products. Meanwhile, the company currently has a warehouse of 2000 square meters for storing large quantities of stock and is managed by WMS.

  • 02

    we provide

    Over 1500 types of mechanical seals designed and manufactured. Mechanical seals for Flygt, Grundfos, Wilo, Lowara and other pumps, as well as cartridge mechanical seals, spring mechanical seals, bellow mechanical seals, and other OEMs.

  • 03

    we reduce

    The supply chain risk of customer is greatly reduced. The lead time of goods can be shortened to within one week or even 3 days due to the efficient management of inventory.

  • 04

    we promise

    The goods that reach the customer are guaranteed to be of good quality. From the initial selection of raw materials to processing and assembly to final packaging, the quality of our products is strictly controlled. We follow the rule of quality management and have a certificate of ISO9001.

Our Vision

Our core value is to achieve excellence in everything we do. We strive to continually improve our products and services to meet the evolving needs of our customers and provide them with the highest quality mechanical seals. Thus, our high-quality products are favored by many customers, such as the leading company AESSEAL, of which we are one of the suppliers.
Our company mission is to deliver top-notch mechanical seals that exceed industry standards and expectations. We understand the importance of delivering products that not only meet but exceed our customers' expectations. That is why we have invested in state-of-the-art technology and equipment to ensure the quality and performance of our mechanical seals.
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global marketing

We have customers from over 35 countries choosing our products and services.
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AustraliaSoutheastAsiaAsiaNorthAmericaSouthAmericaAfricaMiddle EastEuropeRussia
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