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O-Ring Design & Production: Sealing Theory, Material Selection & Size Matching

Their simple circular cross-section delivers reliable static and dynamic sealing, making them indispensable for preventing fluid/gas leakage and maintaining system stability. This article systematically explains O-ring working principles, material selection, hardness matching, groove design, typical applications, and international standards—providing a professional reference for precision manufacturing and engineering design.

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2026 04-02
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Spanish Client Visits PDM, Forging Further Multi-Category Cooperation

PDM's custom screws and components, including non-standard screws, custom stainless steel screws, and thumb screws, have been recognized by a Spanish client in the pumps systems and solutions industry. The client visited PDM to secure multi-category cooperation, focusing on stainless steel Beverage mixer accessories and Stainless Steel Gas Manifold Fitting. The long-term partnership between the two parties is based on PDM's competitive costs, stable quality, fast delivery, and professional service. PDM looks forward to expanding cooperation with more customers from Spain and Europe.

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2026 01-26
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What Are The Common Plastic Molding Processes?

There are 23 common plastic molding processes, including injection molding, extrusion molding, rotary molding, blow molding, vacuum forming, compression molding, rolling molding, foam molding, winding molding, lamination molding, film covering molding, pouring molding, drip molding, cold pressing mo

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2025 04-04
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What Are The Common Materials for Engineering Plastics?

The common materials for engineering plastics are generally as follows:ABS,PP,PC,AS,PS,PE,PPO,HIPS,PMMA,PVC,PC+ABS,GPPS,POM,PA,ASA,PBT,etc.ABS Product Characteristics:● ‌Material & Surface‌● ‌Texture & Color‌: Matte or semi-gloss finish, commonly in ivory white or black; supports multi-color appeara

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2025 04-04
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Model And Related Performance of Machine Screws

What are the types of commonly used screw head and groove types?Head shape name:Flat Countersunk Head、100deg Flat Countersunk Head、Oval Countersunk Head、Countersunk Trim Head Screws、Fillister Head、 Pan Head、Truss Head,Round Head,etc.Slot type name:Soltted Type、Phillips Type、Torx Type,Square Type,Poz

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2025 04-04
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PIPE ELBOW

Exhaust pipe Elbow...

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2021 07-03
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What Are The Common Plastic Molding Processes?

There are 23 common plastic molding processes, including injection molding, extrusion molding, rotary molding, blow molding, vacuum forming, compression molding, rolling molding, foam molding, winding molding, lamination molding, film covering molding, pouring molding, drip molding, cold pressing mo

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2025 04-04
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Common Industrial Applications of Spring Plungers in Machinery And Automation Systems

If you have ever wondered why some machines “click” into place so smoothly, why a cover panel stays shut without a complicated latch, or how an indexing plate reliably finds the same position again and again, there is a good chance a spring plunger is doing that quiet work behind the scenes. Spring plungers are small components, but they solve big mechanical problems: quick positioning, controlled locking, repeatable indexing, and safe retention. In modern machinery and automation systems—where speed, accuracy, and maintenance efficiency matter—spring plungers provide simple, robust functions that reduce the need for complex assemblies.

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2026 03-24

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