本合同一式两份，A方和B方各执一份。本协议自双方盖章签字之日起生效，其

This contract is in duplicate, Party A and Party B each hold one. This agreement shall take effect from the date of signature and signature by both parties. For matters not covered, both parties may sign a supplementary agreement after negotiation.

This contract is two copies, A and B each hold one. This Agreement shall take effect from the date of the seal and signature of both parties, and if the parties have not done anything, the parties may enter into a supplementary agreement after consultation.

This contract is made in duplicate, with Party A and Party B each holding one copy. This Agreement shall come into force as of the date of seal and signature by both parties. For matters not covered, both parties may sign a supplementary agreement through consultation.<br>