We design, develop, and manufacture high performance & quality sealing products to fulfill customer satisfaction.

Our mission is to use our knowledge in products and services to supply the most suitable solution through reliable quality, competitive prices, and rapid delivery.

Our goal is to be the reputed supplier for sealing solution

You will be offered tons of all-in-one solutions to boost your business!

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Featured Product

Insulation Gasket Kits

Sealing Gasket

Braided Packing

PTFE Products

Lots of secret testing products won’t be published on site. Don’t wanna miss any of them?

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Our high quality services always beyond your expectations. 100% promise!

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Wholesalers & Retailers

  • A very competitive price to help you cut cost and increase profits.
  • PTS will handle all details of the order on your behalf, providing fast shipping to ensure timely delivery.
  • With low MOQ, you can market test your business ideas before your final decision. PTS helps you to monitor and control your risks.


Worry about your customers won’t like our products? See what our clients’ happy customers said about our products. Your customers will LIKE them, too!

“We would like to partner with LongSeal again in the future and hence would enthusiastically recommend LongSeal for any sealing solution provider to prospective clients”

Michael project operator Australia

“Quickest order processing & dispatched on time. Keep up the good work. We look forward to working with them into the future… so would I recommend them? Absolutely!”

Luca sales & logistic manager France

“LongSeal is always on hand with technical help and advice, and we receive our goods in good time. They provide our company with sealing solutions consistently. Whether for production or prototyping purposes we rely on LongSeal to resolve all our sealing requirements. “

Stephan Buyer Germany

Make video clips or product reviews for PTS to get your free samples!

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We Are Here To Help

We help clients design and complete his or her requirement production projects and find the solutions for customized accessories that best fit their unique identity.

If you are looking for a Chinese electronic accessories manufacture or have limited experience on how to make a prototype product, Longseal maybe your essential choice.

We provide the best solution according to customer needs. Solving problems for you is our goal.

Have a question? Great! Our quick-response client & customer support is here for you.

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