默克无水硫酸钠25kg规格的是怎样包装的，纤维纸箱具体是什么样的呢？

在默克的英文版资料里对纤维纸箱是这样描述的：
Fibre Carton:
These are used for solids and are made of 1 or 2 layers of heavy-duty fiberboard. Waterproof glue provides protection against the effects of moisture. The cartons are stable and can be stacked and are hence potimal for the Merck CP-5 range of products(114*76cm). They have been officially tested and are UN-approved. Polyethylene sacks provide product protection.