The subject signing the subscription document must be lawful; the content of it must be lawful; it must be in written form. It reveals true intentions of both parties.
签定认购书的主体必须合法，认购书的内容必须合法，必须采用书面形式，是双方当事人真实的意思表示。
2
The electronic (computer) copy with all signatures and seales of the participants of the given document is valid and is equated to lawful force of the original.