Thee letter should be printed on the company letterhead.
请采用含公司抬头的公文信笺…。
2
If needed do some fake letterhead, get a fax number in the same town / phone exchange, and pretty soon you could be the head of the smallest branch office of that corporation.
如有必要，还可以伪造一些假信头，弄一个相同号段的传真号码。 很快你就会成为该公司最小部门的头头了。
3
In a few application the environment falls, may ask letterhead also can keep secret in transmission process, this technology that transmits a layer with respect to need serves as backing.