Our product brand is Kongzu. Black lead includes thick graphite pencil lead of B-6B, H-6H. HB,charcoal lead, charcoal stick and carpenter series, etc. Color lead include high grade, middle grade and common grade, fluorescent lead ,glass lead ,6 color pencils set ,12,18,24,36,48,50,60color pencils set. We can make different lead and length to meet all kinds of demands from customers.
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But researchers at U.C. San Diego have developed a fluorescent warning system that lights up in the presence of toxins that could lead to food poisoning for a consumer.
不过加州大学圣地亚哥分校的研究员们确实开发出了一套荧光预警系统，在食物中含有可能使食用者中毒的毒素时会发出荧光。
Lead oxide in glass used for bonding front and rear substrates of flat fluorescent lamps used for Liquid Crystal Displays (LCD).
液晶显示器中焊接前后平版萤光灯基质的玻璃中的氧化铅。
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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