Customized High Quality Nitril/NBR 40 Duro Square Washer Rings
We serve major clients such as Cummins, Emerson, Neway, Linde, and more. Our products are widely used in industries including automotive, chemical, electrical, electronics, hydraulics, pneumatics, machine building, petroleum, power generation (including nuclear), offshore, solar, oil and gas, and more.
1. High-quality compounds sourced from leading global suppliers, including NBR, EPDM, VITON (FKM), HNBR, Silicone, and others. Color options available via Pantone codes, with hardness ranging from 30 to 95 Shore A. Imported materials from reputable brands like 3M, DuPont, Bayer, Daikin, and Dow Corning.
2. Manufactured using mold vulcanization technology. Inner diameter (ID) ranges from 0.5mm to 1000mm, with cross-section (C/S) from 0.5mm to 20mm via mold vulcanization. For section vulcanization, ID ranges from 3mm to 20mm, with C/S from 500mm to 6000mm.
3. Available in AS, JIS, BS, DIN, Metric, and custom sizes to meet specific requirements.
4. In-house tooling is available at no charge for standard rubber rings. Mold lines can be designed as 45° or 180°, ensuring flexibility and precision.
5. Certified with RoHS, REACH, and NORSOK M-710 standards, ensuring compliance with international quality and environmental regulations.
6. Comprehensive material traceability through ERP and barcode systems, ensuring full transparency and quality control throughout the production process.
7. Large inventory available with flexible minimum order quantities (MOQs) to suit different project needs.



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XUYI BOTU ATTAPULGITE CLAY CO.,LTD , https://www.xuyibotu.com