Thank you for your interest in our products.
Our company believes in establishing a long-term business relationship with our client (或 "customer”).Thus, we would appreciate if you could propose a reasonable price that is acceptable to you for our consideration.
We look forward for your continuous support.
注:文的内客是以贵公司从事的是货物买卖为背景而写. 除了请客户定一个自己比较满意的价格之外, 还加了以下几点：
（1）“reasonable price” 是引导客户给一个合理的价格
（2）“acceptable to you” 是指客户能接受的价格
（3）“for our consideration“-是指贵公司将会考虑客户提出的价格
希望能帮得上忙.