... 3)OEM of O-ring 4)Delivery time:within a week Waterproof gasket Material NBR, NR, EPDM, ... according to the pantone Duro 30~80 shore A Technics Designed by 3D high accuracy, small errorMaterial ... order and payment,Supply Ability 100000 PCS per a monthIf you have samples or 3D drawing, ... enterprise. Since had been established,The company has a set from the product design, the research and development, ...