委托方需多份检测报告的，应在签订合同前提出，本公司一般不对检测报告复印件加盖红章。

The client shall notice in advance if they need more than one report. AS general, IAS will not sign the red chop on the test report photocopy.

youdao

You can make multiple--you can put three or four-- the copy gets worse and worse each time, but you've got multiple copies.

你也可以复写多份，放上三四张复写纸-,不过越往下复印的效果会越差，但终归你还是有了多份副本。

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