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Guangdong DEF Sigilii Solutions Co, Ltd. a fost găsit în 2004, care  is a technology enterprise with R&D, production and sales department, manufactures a wide range of hydraulic seals, PTFE products applied to harsh conditions, special custom  PU and rubber seals.


R & D Capability Cu o forță de muncă de 18 ingineri, dintre care nouă se concentrează pe R & D, am primit 18 brevete de invenție naționale.


Capacitatea de producție deține DEF două centrale standardizate de pana la 10.000 de metri pătrați fiecare, în care ateliere constante de temperatură / umiditate PTFE sunt stabilite. Echipamentele noastre de producție includ importate mașini verticale / orizontale CNC, prese de ulei 2000T, controlat de computer cuptor de sinterizare, masina de turnare PU, cauciuc de amestecare, masina vulcanizarea, etc Producem personalizat PTFE / PU / garnituri din cauciuc cu o dimensiune de la 1mm la 1500mm.

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  • High-performance Metal Spring Energized PTFE Seals

    DEF has been available with various PEEK seals since before 2015. The most famous of these is a Spring seal made of PEEK. But do you really know anything about PEEK?  Today let’s take a look at this mysterious material PEEK (Polyether ether ketone) is one of the slowest developing and expen...

  • DEF R&D team has completed the development of high-performance passivity yaw brake pad and is about to be released…

    DEF Seals have a technical team of 17 personnel, after two years of hard research and development, they finally found the most reasonable distribution of raw materials so far, that’s why we can see the high-performance passivity yaw brake pad now. passivity yaw brake pad belongs to friction mater...

  • What is V-Packing? DEF Seals will let you know… (2nd chapter)

    In the last article we talked about what V-packing is and some of its features and applications. As we said before, V-shaped seal ring is a shaped packing seal, the cross section of v-shaped lip seal ring. It has small working resistance, smooth operation, high pressure resistance, vibration resi...

  • More wear resistance, longer service life—PTFE filled with 60%Bronze

    After more than 2 years of exploration, DEF Seals developed more wear resistance, longer service life Seals with material PTFE filled with 60% Bronze. This seal looks brighter than the traditional PTFE Bronze seals because it is filled with more bronze powder, so it looks golden. As we all know, ...