Joint stock cooperation agreement. How to write completely, concisely and to the point?

Partnership agreement (model) \ x0d \ x0d \ Partner: A (name), male, born on \ x0d \ x0d \ Article 3 The term of operation of this partnership is three years. If it is really necessary to extend the time limit, the relevant formalities shall be handled six months before the expiration. \x0d\\x0d\ Article 4 Both partners * * * jointly operate, * * * work together, * * * bear risks and * * * make profits and losses. \x0d\ Enterprise surplus is distributed according to their respective investment proportion. \x0d\ The debts of the Company shall be borne in proportion to their respective contributions. After either party pays off its debts, the other party shall pay off its share to the other party within ten days in proportion. \ x0d \ x0d \ Article 5 Other people may join the company, but they must obtain the consent of both parties, go through the formalities of increasing capital contribution and sign a supplementary agreement. The supplementary agreement has the same effect as this agreement. \x0d\x0d\ Article 6 The partnership shall be terminated under any of the following circumstances: \ x0d \ (1) The partnership shall be terminated; \x0d\ (2) Both partners agree through consultation; \x0d\ (3) The partnership business has been completed or cannot be completed; \x0d\ (4) Other laws and regulations. \ x0d \ x0d \ Article 7 For matters not covered in this Agreement, both parties may make supplementary provisions, and the supplementary agreement has the same effect as this Agreement. \ x0d \ x0d \ Partner: ××× (signature) \ x0d \ Partner: ××× (signature) \x0d\\x0d\ × year × month× day.