客人回信

We have our own returnable packaging,
我们有自己的可回收包装，

hence a filling in Europe would be highly appreciated.
所以如果能在欧洲装填的话，我们会非常感激。

A packaging logistic "Germany - China - Germany" would be really
complicated and require a lot of time (and packaging).
“德-中-德”这样的包装物流实在是太麻烦了，需要很多时间（和包装）。