... and tear resistance, Durable;· UL & SGS certification;· Rubber Material: NBR, HNBR, XNBR, EPDM, CR, NR, SBR, VMQ ... Color: Regularly black, red, blue, yellow for rubber material, for silicone, any colors are available according ... rubber material, please choose the suitable one for your items, thanks. Material NameHardnessWorking Temperature (Degrees)Standard ... 1050LF, 4079, 6375, 7075 NBR Rubber Parts