... Meet ROHS requirements 3) Can resist high tem hydraulic seal Silicone sealing ring ,Eco-friendly ,high and ... leakage or ingress of fluids and dirt.4.Universal application: for bottles,lids,tubepart ,carpart ,equipment machines ... company has passed the certification of ISO9001 Quality System , and brought in 6S production management pattern ... products, please contact with us. hydraulic rubber oil seal