before delivery to the shipping line

在向船运公司托运前

The exporters have the right to inspect the export goods before delivery to the shipping line.
出口商在向船运公司托运前有权检验商品。

what is your question?

发货到船运线之前

shipping line 轮船公司
before delivery to the shipping line 在货物送到轮船公司以前