As your comments, we would like to informed you that the certificate of origin, we must issue as per B/L.
But the another related docs, we can issue just 1 set.
Example: Set of Diamond Cement, you would like to issued 3 B/L. The certificate of origin must issue 3 set as B/L. But commercial invoice, documents of SGS and Manufacture certificate, we will issue 1 set.
This case we asked with my shipping, already.
If you have any question, please reply with your answer.
Best regards,