... tube Performance1-high and color temperature resistance2 Non-toxic ,tasteless3Good electrical insulating performance4 we have kinds of material :NBR ,HNBR ,EPDM,SILICONE ... .oven ,food ,and other industrial department of the good electrical insulating sealing ,liquid transportations materialsTemperatureCommon: -60~100 degree centigrade;HNBR (-30~ ...