... competitive price. 4.Professional rubber manufacturer. Details about soft o ring: Materials Comply with ROHS, NBR, Silicone (VMQ), EPDM, Viton, ... , no flash.Color Black, transparent, green, red, yellow, grey, purple, pink or as your requested.Quantity Small order is accepted ... optimization.8. OEM and ODM are highly welcomed, V ring, D ring, X ring are all available.Our advantages:1. Strong QC and ...