装箱单价格单要认证泰国大使馆认证（uses？）
首先价格单和装箱单都要认证正本文件 在之就是文件必须整洁无褶皱！
还有就是正本文件要盖好章！一般是中英文章 这两个文件，公章也是可以的
一定要盖章么？

是的！一定要的 ，不然第一步就给退单了。

加页的话还需要盖骑缝章。

Packing list Price list needs to be used by a Thai embassy.

Above all price list and packing list should certify the original document in it is the document must be neat without fold!

There is the original document to be stamped! It is Chinese and English article commonly these two documents, official seal also is OK

Must it be stamped?

Yes! Be sure, or the order will be returned in the first step.

Add a page of the word also need to cover the seal.