英语翻译我们向贵公司申请购买A以作调试程序用,并保证该产品不会用于除调试程序以外的任何场合

We apply to purchase A from your company to debug the programme and we guarantee the product will not be used in other ways.

We apply to purchase product A from your corporation in use of debuging programme and we promise that this product will never be used in any other ways.

we request to purchase A from your company for the purpose of program testing and we guarantee that the application of this product will be strickly restricted in no other than program testing.
申请在此处用apply没有request好.
request：to ask for sth or ask sb to do sth in a polite or formal way
用use不合适.用apply或者其名词apllication才对.
apply：to use sth or make sth work in a particular situation即：应用,把.东西应用于.

We are purchasing product A from your company for programme testing purpose and guarantee not to use it for anything other than that.