... 3.ROHS,ISO9001,14001 4.Sample or drawing welcome Red Rubber suction cup 1. Main materialNeoprene(CR),also can use Natural ... rubber, SBR, NBR, IIR, PU, EPDM, Silicone, FKM, FVMQ, HNBR, ECO, ... know the use).Hardness or duro.Tolerence.Color.Quantity Red Rubber suction cup