Use special calcium lead tin alloy plate grid, more resistant to corrosion, charging accept ability is better.

使用特殊的钙铅锡合金板栅，更耐腐蚀，充电接受能力更好。

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Lead causes brain damage by mimicking helpful metals found naturally in the body, such as calcium, iron and zinc, and binding with the same molecules and proteins.

通过模拟有助人体、自然存在的金属元素，诸如钙、铁、锌，并结合相同的分子与蛋白质，铅会导致大脑损伤。

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Surprisingly, calcium supplements may be contaminated with lead, because the sources of calcium in supplements—like seashells or cow bones—are contaminated.

令人惊讶的是，钙的补充品中可能受到铅的污染，因为主要的钙补充品像海贝和牛骨都可能被污染。

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An international research team of cardiologists, radiologists and archeologists used CT scanners to evaluate the mummies, hunting for deposits of calcium in arterial walls that are a telltale sign of hardening of the arteries that can lead to heart attacks and strokes.

WSJ: Telltale Finding on Heart Disease in Mummies

According to research published in the Journal of Epidemiology, pregnant women who don't consume enough calcium risk the breakdown of their bone mass, which in turn, releases potentially dangerous levels of lead into the body.

CNN: Calcium for Moms-to-Be