... Strength, Wear and tear resistance, Durable;· UL & SGS certification;· Rubber Material: NBR, HNBR, XNBR, EPDM, CR, NR, SBR, ... IIR, ACR.· Color: Regularly black, red, blue, yellow for rubber material, for silicone, any colors are available according to your panton #; ... the following features of all kinds rubber material, please choose the suitable one for your items, thanks. Material NameHardnessWorking ...