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    What is ISO certification
    Article source : Shandong qingyun junchuang and lock co., LTD., Add : 2017-12-25 Pv:

    ISO certification, ISO is the world's largest international standardization organization. This certification is internationally recognized. Its certification is to facilitate the exchange of goods and services between countries. Promote international exchanges and the development of friendly relations. 

    junchuang look certification

    ISO is organized by the world 100 pairs of countries, the certification of the content from your product material, production, quality, specifications, performance and so on.

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