Because of the current People in society are required to use the light in daily life is very much like using a flashlight shining time, power failure or reading lamp, but at present, we have to use lots of bulbs and bulb to use it when it expires would be electronic waste that has.Raloha heavy toxic and not recyclable disposable if landfill takes longer than 500 years of degradation is the environmental cost is more heavily used and the cost is considered to be an issue that did not reduce global warming real, if considered throughout the product life cycle, so broadcasters do so.Artifacts from the light bulb filament ด้จัดทำ pencil pencil filling in because it is graphite, which cause the light and to use a pencil in filling per cycle lighting and can be used in everyday life, because it actually filling it easily and find a pencil can be used to advantage to not have to take a long time to decompose. Passengers have noticed and therefore have chosen filling up tried pencil.
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