13. 通知（Notices）：
所有通知用＿＿＿文写成，并按照如下地址用传真/电子邮件/快件送达给各方。如果地址有变更，一方应在变更后＿＿＿日内书面通知另一方。
All notice shall be written in _____ and served to both parties by fax/e-mail /courier according to the following addresses. If any changes of the addresses occur， one party shall inform the other party of the change of address within ____ days after the change.
14. 本合同为中英文两种文本，两种文本具有同等效力。本合同一式 _____ 份。自双方签字（盖章）之日起生效。
This Contract is executed in two counterparts each in Chinese and English， each of which shall be deemed equally authentic. This Contract is in _____ copies effective since being signed/sealed by both parties.
The Seller： The Buyer：
卖方签字： 买方签字：
