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We have 162 sets of production equipment, most of which are imported from Germany and Japan. Production lines include molding, casting, injection molding, extrusion, sintering, CNC machining, puching, etc. The production range of seals is 0.2mm-5000mm, with a daily output of 127,000 pieces or more.

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We Have Better Technology

DLSEALS focuses on customer needs and is a reliable partner and supplier to customers in more than 160 countries worldwide, helping them solve supply and technical problems.

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We Have Many Partners Around The World

We have our own technical center and testing facilities, a comprehensive laboratory that integrates product development, manufacturing and testing; with material formulation tests, physical testing tests, chemical tests, pilot production processes and product testing laboratories.

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Obtained Numerous Patents

Our manufacturing standards are evidenced by the certifications we have obtained over the years. In addition to SGS, ROHS, REACH, FDA, UL, TUV, CE and many others, DLSEALS has ISO 9001:2015 quality management system certification.

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120000+
Product Quantity Specifications
1660+
Material formulation
6000+
Transaction client
0.5 to 2500mm
Product Diameter Range

Latest News

How to Distinguish Between Glyd Ring and ...

29 Jan,26

In hydraulic and pneumatic systems, seals are critical components that ensure efficient system operation. Among them, the Glyd Ring and Stepseal (also known as Step Seal) are common composite seal...
The Silent Guardian: A Comprehensive Anal...

27 Jan,26

Within modern industrial systems, hydraulic technology functions as an invisible “river of power,” driving behemoths from massive tunnel boring machines to precision injection molding ...
Guangdong Delong Sealing Technology Co., ...

26 Jan,26

Spring Festival Holiday Notice 2026 Guangdong Delong Sealing Technology Co., Ltd. Dear Valued Customers, Thank you for your continued trust and support. Please be informed that our office will be ...