Could you please give to me your feedback about the grammar of the next question .
Could you please give to me your feedback about the grammar of the next question that I try to sent to one of my customers.
Thanks in advance.

"In another hand, I would like to know if you have some specific reason to order the style 3000 without the process of cutting at a 45°.?

Question

Could you please give to me your feedback about the grammar of the next question .
Could you please give to me your feedback about the grammar of the next question that I try to sent to one of my customers.
Thanks in advance.

"In another hand, I would like to know if you have some specific reason to order the style  3000 without the process of cutting at a 45°.?

Answer

"On the other hand, I would like to know if you have some specific reason to order the style 3000 without including the process of cutting at a 45° angle."

Answer

"On another hand..."

The rest seems fine, but I'd have to see the context.