Can you tell me the rock-bottom price of this product？
你能告诉我这种产品的最低价码？
Could you tell us the unit price of this product？
你能告诉我们这个产品的'单价是多少吗？
I hope you will offer us your lowest quotations，CIF New York.
我希望你能提供纽约到岸价的最低价格。
Please quote us prices including insurance and freight to Hongkong.
请报到香港的包括保险和运费的价格。