封航 meaning in Chinese

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In order to promote business between us , we are airmailing you samples , under separate cover , for your inspection
为促进双方业务往来，另封航邮寄上样品，供你参考。
As requested , we are airmailing to you , under separate cover , a sample of art , nos . 1101 and 1102 for your reference
根据要求，兹另封航邮货号1101和1102样品各一份，以供参考。
To acquaint you with the light industrial goods we handle , we are sending you , by separate airmail , a commodity list and several sample books for your reference
为使你方熟悉我方经营的轻工产品，另封航邮寄上目录和一些样品，供你参考。
To acquaint you with the light industrial goods we handle , wde are sending you , by separate airmail , a commodity list and several sample books for your reference
为使你方熟悉我言经营的轻工产品，另封航邮寄上商品目录和一些样品，供你参考。
To acquaint you with the light industrial goods we handle , we are sending you , by separate airmail , a commodity list and several sample books for your reference
为使你方熟悉我方经营的轻工产品，另封航邮寄上商品目录和一些样品，供你参考。