Rubber O-ring Inspection Standard The inspection standards for rubber O-rings mainly test the inner and outer diameters, wire diameters, appearance and hardness of rubber O-rings. http://www.rubber-ring-ball.com
O Ring, Rubber ball, Plastic ball, Rubber o ring, Hollow plastic ball, Plastic Float Ball, o ring Seal, CR Rubber ball, PA Plastic ball, VITON o ring Manufacturers.