回複：產品已經做好，現在我隻是加上自己的品牌名稱和包裝盒子。如何與生產廠商洽？

Most of factories in China don't have good package designer. if you want to promote your brand, you are better get one designer by yourself. At least, you should have one "Sample"-- from store; anyhow, you have to have a clear idea, how your products will be. Also, you need "bar code", manual.
Package is VERY important for any new product. I suggest you should spend more time on it.