Except natural lead, we also have gold, black and white leads which are produced with color coating.
铅条除本色外还有金、黑、白等三种不同颜色，由表面镀膜制备而成。
In the course of color coating steel plate production, coating thickness directly effects product cost and quality.
彩色涂层钢板的生产过程中，涂层的厚度直接影响产品的成本和质量。
Mistakes in the original design of the pretreating process section of the color coating line caused certain quality defects on the product.
彩板生产线预处理工艺段原设计缺陷造成彩板质量问题。
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