... quality 4) Professional service. Features of our rubber gasket : · Working temperature: -100 to +300 degrees ... Working field: Water, lube, oil, industrial, machine, etc;· High tensile Strength, Wear and tear ... UL certification;· Rubber Material: NBR, HNBR, XNBR, EPDM, CR, NR, SBR, VMQ, FKM, LAS, ... material, please choose the suitable one for your items, thanks. Material NameHardnessWorking Temperature ...