商务英语写作范文:对包装箱长度、唛头的指示

Dear Sirs,

　　Crates must not exceed an overall length of 10 meters.

　　All crates are to be marked as usual,but please number them consecutively from No.1 to No.5.

　　All marks other than our own and the name of the country of origin are to be removed from the crates before shipment.?　　

　　Yours,