Terms for subject Commerce containing in duplicate

English	Chinese
documents made in duplicate	有副本的公文
drafts in duplicate	汇票一式两份
Enclosed please find our Sales Contract No. 115 in duplicate, one of which please return duly countersigned	随函附寄我第115号合约一式二份，请会签后退回一份
We herewith enclose our Sales Confirmation No. 999 in duplicate	兹附寄我方第999号销售确认书一式两份
We herewith enclose our Sales Confirmation No. 100 in duplicate	兹附去我方第100号销售确认书一式两份 (in two copies)
We herewith enclose our S/C No. 1144 in duplicate for this transaction. Please sign the counterpart and return it to us for our file at your earliest convenience	请尽早签署后退寄一份供存
We herewith enclose our S/C No. 1144 in duplicate for this transaction. Please sign the counterpart and return it to us for our file at your earliest convenience	兹附寄此笔交易的第1144号合同一式二份