给客户报价后，跟进的邮件如何写？

在现实中,我发现很多客户发来询盘后,我也及时的给予报价,可报价后就一直没有客户的反应,没有见有订单.像这种情况应该如何处理.应该写什么内容的邮件去给客户以进一步跟进呢.应该在发出报价后几天内发出邮件比较合适呢?
回复A:
Dear Hugo Chu,
How are you ?Wish everything well with you and your esteemed company !
We are in receipt of your letter dated Aug 10 ,and as requested was expressed you 3 catalogues for our refrigeration goods .We hope they will reach you in bue course and will help you in making your selection .
Wish we will promtoe business as well as friendship!
Best wishes !
Aaron
回复B：
我觉得先写邮件问清情况,
简单的询问,如HAVE YOU RECEIVED MY P/I,
IS THERE ANY QUESTION OR PROBLEM WITH YOU?
再问何时开L/C或汇订金过来..
如客户没回复,,
那你应该(很有必要)打个电话过去问清情况,,
是价格问题,市场临时发生改变?客户是中间商,还在等最终客户的确认?还是其它问题?
然后根据情况做一些措施看能否挽回这一张订单..
回复C：
Dear Sir,
Good morning! Hope you have got a wonderful weekend!
For several days no news from you, my friend. Now I am writing for reminding you about our offer for item of **** dated ** ** ** according to your relative inquiry. Have you got (or checked) the prices or not? ( You can add some words to introduce your advantage of your product or something else to attract the customer). Any comments by return will be much appreciated. It will be our big pleasure if we have opportunities to be on severice of you in near future. Looking forward to your prompt response, Thanks and best regards, Yours Faithfully If still no any response, you can write another one about one or two month later: Dear Sir, How are you? Hope everything is ok with you all along. Now I am writing for keeping in touch with you for further business. If any new inquiry, welcome here and I will try my best to satisfy you well with comptetitive prices as per your request. By the way, how about your order (or business) with item ***? If still pending I would like to offer our latest prices to promote an opportunity to cooperate with each other. Thanks and best regards,