We have similar products,but the size will be slightly different.And I will provide detailed dimensions of the products to you tomorrow.Attached please find the estimated quotation for your reference.A new tool (mould 这两词都行 ) will be required for the product exactly the same as your requirment.
一般商务英语信函都会比较简洁,例如最后一句,可用被动语态,就会显得简洁许多
”附上...报价“,现代商务英语信函中都会常用 "Attached please find...for your reference."