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25 Lead in solders for the soldering to machined through hole discoidal and planar array ceramic multilayer capacitors.
26 Lead oxide in plasma display panels (PDP) and surface conduction electron emitter displays (SED) used in structural elements, notably in the front and rare glass dielectric layer, the bus electrode, the black stripe, the address electrode, the barrier ribs, the seal frit and frit ring as well as in print pastes.
27 Lead oxide in the glass envelope of Black Light Blue (BLB) lamps.
28 Lead alloys as solder for transducers used in high-powered (designated to operate for several hours at acoustic power levels of 125 dB SPL and above) loudspeakers.