The utility model has the characteristics of a low cost, a light weight, is not easy to crush in mailing, and can be used once.
不但造价低且具有观察、邮寄不易破碎、重量轻、可一次性使用的特点。
The utility model has the characteristics of a low cost, a light weight, is not easy to crush in mailing, and can be used once.
不但造价低且具有观察、邮寄不易破碎、重量轻、可一次性使用的特点。
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