英语翻译

英语翻译
your letter of 26 Nov,.1979 came to hand a week ago and 10 Jacks have been received under Air Way Bill 276JFK788 .We shall put them into trial use at once and would be more than happy to keep you advised of all the developments of the trial use .
Your visa to Beijing is ready.Please come to Beijing around 20 of this month.Mr.Zhang Ming,our general manager will be available for a meeting with you to discuss assembling cost and other terms and conditions and sign a contract with you.We will take this opportunity to explain to you the scope of business of this corporation and inform you about the special conditions cencernin gthe various products which we handle.
Regarding the samples manufactured by our plant,you may have a thorough inspection personally when you arrive at Beijing.Therefore,we think it is unnecessary for us to send them to your firm.
Looking forward to a closer relationship berween us.
求高手帮我翻译这段话,