EPDM, NBR, SBR, NR, Silicone(VMQ), Neoprene(CR), HNBR, XNBR, FKM, FFKM, FVMQ, FLAS, PTFE, PU, ECO, IIR, ACR, etc…
Yen ana syarat khusus kanggo kinerja materi, kayata tahan suhu, nolak deformasi, set kompresi,