Certificate of sales, which declare the product name, the name and detail address of manufacturer, and prove there is no any limitation to manufacture, sale and use of the products.

生产国官方机构出具的自由销售证明，应体现产品的名称、生产厂家的名称和具体地址，并证明该产品在本国生产、销售和使用不受任何限制。

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Persons who may be (JENA Beijing office staff) said: "The tuition fees must be mailed to prove, electronic versions of no use, because the proof of the need for signature and seal."

何人可（JENA北京办事处人员）说：“学费证明必须邮寄的，电子版本的没有用，因为证明上需要签名和盖章”。

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