tin lead alloy造句

例句与造句

1. Specification for electroplated coatings of tin lead alloys
   锡铅合金电镀层规范
2. High precision welding materials pure tin lead alloy products
   高级精密焊接纯锡铅合金材料制品。
3. It's difficult to find tin lead alloy in a sentence. 用tin lead alloy造句挺难的