两句话求翻译下英文,语句要通顺,谢谢!

问题描述:

两句话求翻译下英文,语句要通顺,谢谢!
对于所有工具产品,在这之前我们讨论过,为获得更有优势的价格,采用2A的包装质量标准.
根据你提出新要求,如果需要改变为1S的包装质量标准,工厂将不得不重新计算所有产品的价格,预计单价会增加20%.

About all the tools and products, we have a negotiation before.To obtain the better competitive price, MUST to follow the the packing quality standard of 2A.
According to your new requirement, if you need to change the standard to 1S, the factory will have to compute the price of all products again. We predict the price of per product will increase about 20%.
我中间给您加了个MUST,不知道可不可以,我觉得您的意思就是想要求对方执行2A标准,就用MUST强调了一下.