Lead in soldering materials in mercury free flat fluorescent lamps which e. g. are used for liquid crystal displays, design or industrial lighting.
于无汞平面萤光灯(使用于液晶显示器、设计或工业照明设备)中焊锡内含的铅。
Lead in soldering materials in mercury free flat fluorescent lamps which e. g. are used for liquid crystal displays, design or industrial lighting.
于无汞平面萤光灯(使用于液晶显示器、设计或工业照明设备)中焊锡内含的铅。
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