Generally used as intermediate packaging method, between the inner packing and outer packing.

一般作为中档的包装方法使用，介于内包装与外箱包装之间。

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With the inner bag is three layers of kraft paper, the outer bag is two layers of kraft packaging, should be complete without damage, moisture and anti pollution.

用内袋是三层牛皮纸，外袋是二层牛皮包装，应完整无破损，防潮防污染。

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Packaging should include: material, state, thickness, closure, inner lining, outer securing and unit weight.

包装方法应说明包装的材质、状态、厚度、封口、内部衬物、外部加固情况及单位重量等。

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