I'm afraid I don't find your price competitive at all.
我看你们的报价毫无任何竞争性。
If your prices are favorable, I can place the order right away.
如果你们的价格优惠,我们可以马上订货。
We shall be glad if you will quote us the best discount for cash off your list price for cash for this quantity.
对这批数量大、以现金支付的货,如你方能从价目表中,再给些折扣优待,当不胜感谢。