Writing commercial emails in Chinese is pretty simple if you have the examples of such letters. Supersonic Commercial Chinese Book 1 by Polina Shinkina will reduce the time you spend on email writing. This textbook contains samples of short commercial emails which can make you more productive, be short and to-the-point in your correspondence.
The Chinese commercial emails in Supersonic Commercial Chinese Book are good for your career prospects and will help to write commercial emails clearly and concisely, be understandable to your Chinese conversation partner and will keep your projects moving faster.
More information you can find in Supersonic Commercial Chinese Book 1 by Polina Shinkina http://www.lulu.com/content/e-book/supersonic-commercial-chinese-book-1/18827988 and http://www.lulu.com/spotlight/polina985