单词：non-lead
non-lead的用法和样例：
例句
- The green cresset is the mark of lead free processing.绿色灯号是无铅制程标识。
- Soldering materials are our major products, especially in Lead Free Soldering Materials.焊锡物料是我们的主要产品，特别是无铅焊锡物料。
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