... price. 4.ROHS approved. Details about o ring color code: Materials Comply with ROHS, NBR, Silicone (VMQ), EPDM, Viton, etc.Characteristics ... bags inside, strong carton and PE film paper packed outside with water proof. Capability of our workshop: 1. ISO9001:2008 ... welcomed.3. Experienced sales representatives follow up your new projects with high efficiency.We have thousands of current molds for all ...