Material, items are identified by marking, labeling, or tagging the packaging or containers and when appropriate and practical by labeling the items themselves.
材料和物项的标识，可以为标记或标签，可以粘贴到包装或集装箱上，也可以粘贴到物项上。
Material, items are identified by marking, labeling, or tagging the packaging or containers and when appropriate and practical by labeling the items themselves.
材料和物项的标识，可以为标记或标签，可以粘贴到包装或集装箱上，也可以粘贴到物项上。
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