EPDM, NBR, SBR, NR, Silicone(VMQ), Neoprene(CR), HNBR, XNBR, FKM, FFKM, FVMQ, FLAS, PTFE, PU, ECO, IIR, ACR, etc...
Kana paine chero zvakakosha zvinodiwa pakuita kwezvinhu, senge tembiricha inodzivirira, inopikisa deformation, compression set,