Enclosed herein with are official materials. 请教这个句子是什么语法?可以帮忙再造几个句子吗?谢谢谢啊

这里是倒装,本来的句子是Official materials are enclosed herewith.官方资料随信附上
这个在商务信函中比较常见 Enclosed are our price lists.=Our price lists are enclosed.随涵附上我方的价格表
另外还有这些比较常见的 Enclosed please find our catalogue.
Following is our product catalogue.= Our product cataloge is following.