... strap, type, controlling equipment and vibration absorber.It could be made by many kinds of raw materials, such as NBR, SBR, Silicone ... centigrade;HNBR (-30~150), EPDM (-50~150), FPM (-20~200), SILICONE (-100~300)ColorRed,Orange, Yellow, Green, Blue, Puple, Black, ... quantity, sea/air freighthigh quality Hydraulic Rubber O-Ring leading with different colors, below the pictures for your reference: If you ...