跟你老板要劳务费

涨价的主要原因是原料的大幅涨价。每吨产品的原料成本增加了约5000RMB；关于Acidity：0.50%是工厂的标准，但工厂有能力全部达到0.2%。我们能够保证这个质量指标

The main reason for markup is that the raw material appreciate. The cost of the raw material(per ton in our productions) has appreciated 5000RMB. About the "Acidity：0.50%",it is the standard of our factory.But we have the ability to make it reach 0.2%.We promise that.

其他高手看看合适不合适，毕竟是商业信件