Sir, we need to have the cost of the new mould construction if we are going to pay for it.Here is an attachment with a breakdown of itemized cost.

• 近几天和一个美国客户聊，开始我发了我们的产品给他，过后他要有关那些产品的成本明细清单，我以委婉的答复了他，可第二天他还是要我发成本明细给他，现在真不知道怎么去回了？