... quality 2.100% non-tox silicone rubber material Item namerubber o- ringSizeCustomized/standard and nonstandardBrand Nameo ring.MaterialNBR,HNBR,EPDM,SILICONE ... ,VITON,FLS,FFPM,PTFETemperatureCommon: 20~50degree centigrade;NBR(-40~120C),ACM(-30~180C),VITON(-25 ... Eco-friendly.Order1.show us the 3D drawing of your O-ring. we will do the sample according to your ...