中譯英.急啊!(不要機譯)

I hope we can have one chance of conversation, talk clear about this, but all the time nobody answered . If L/C is opened , you must show the regular sales contract ( the detailed terms of payment is on the back), but if your company explains thename of the key goods in the contract, quantity, unit price, term of payment,etc., we can accept. Your department has been on business with our company for more than ten years, whether L/C is opened, who has got in touch with colleague in our company? Please inform it.up to the payment , it is arranged by our Mainland Company, having nothing to do with HK OFFICE . Please inform_ Thanks