Non-Standard Custom High Precision FPM Ffkm HNBR NBR FKM Silicone EPDM Rubber Oring Seals O-Ring O Rings. Wide Material Selection: Available in NBR, EPDM, SIL, FKM, HNBR, and other rubber types for diverse applications. Custom Color Options: Standard colors include black, white, brown, red, green, blue, and yellow; custom colors available. Flexible Hardness Range: Material hardness can be customized within the 10-90 Shore A range to suit specific needs. OEM/ODM Service: Professional OEM and ODM services provided with 2D or 3D drawings accepted for production. International Certifications: Factory certified with IATF 16949:2016, ISO 9001:2015, SGS, RoHS, and FDA standards. Expert Material Selection: Professional guidance provided to select the optimal material based on application and cost. 20 Years Experience: Nearly two decades of manufacturing experience in rubber seals for auto, medical, and sanitary industries.