翻译为英文:

Since your mineral composition is rather complicated, so we would like to know your thoughts on the equipment so that we can further discuss the equipment you need.
-------------纯人工翻译,

As the composition of your mineral is very complicated, we need to know your thought about the facilities first, so that we could discuss further the facilities you need.

我试着翻译的。应该比机译的好一些吧。。。

concerning the rather complicated components of your minerals, we want to know your view on the equipment first so that we can have a further discussion on your required equipment.

Since the mineral elements you provided is very complex, we want to know about the requirement on the equipment so that it would be very helpful for us to understand the equipment you really need.

如果直译，你汉语句子有些问题，我翻译时做了些改动。

Because your mineral ingredient quite is complex, therefore we want to know first you to the equipment idea, are advantageous for the equip