求翻译：我方不得不写信于贵方谈论有关铁钉包装之事，我方认为有必要向贵方表明我方今后交易的包装方法，以避免今后的交易中出现类似的损坏。是什么意思？

Us had to write about the nails in your side packing things, we believe it is necessary to show us your side of the packaging for future transactions, future transactions to avoid similar damage.

We had to write a letter to your side of things about the nails packaging, our side is of the opinion that there is a need to show that our side side of your packing methods for future transactions, in order to avoid future transactions in similar damage.

We can not but write a letter Yu Guifang to discuss matter of the related nail packing, we thought has the necessity to the expensive side to indicate our next transaction the packing method, will avoid in the next transaction appearing the similar damage.

We had to write to you to talk about iron nail packed things, we consider it necessary to indicate to you that our packaging methods for future transactions in order to avoid similar corruption in future transactions.

We have write a letter on you talking about thinging that relevant pitons pack, we think that it is necessary to show the packaging method that we will trade to you in the future, the similar damage will appear in the trade in the future in order to avoid.