FWDM wavelength division multiplexer is a WDM technology based on thin film filter (TFF), which is widely used in EDFA fiber amplifiers, WDM networks and fiber optic instruments.
52710-34700 is a rear wheel hub bearing with 4 wheel studs, inner diameter 34mm, flange diameter 139mm, 47teeth ABS rings. This wheel hub assembly is used for Korean cars Hyundai Sonata.