The alloying elements in bath play a key role in controlling of coating quality.
锌池中合金元素对镀层质量起到关键作用，其成分一般都特别复杂。
How do you know the finish coating is of good quality?
怎样知道面漆涂层质量是好的？
Therefore, the quality of the tellurium coating must be strictly controlled in the production process.
因此，生产过程中应严格控制碲涂料的质量。
Therefore, the quality of the tellurium coating must be strictly controlled in the production process.
因此，生产过程中应严格控制碲涂料的质量。
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