This "Eternal Peace & Harmony between Nature & Mankind Commemorative Plate" is manufactured under the authorization of the Organizing Committee of Xi'an International Horticultural Exposition.
“天人长安创意自然纪念牌”经西安世界园艺博览会筹备委员会授权制造发行。
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Compared with nature sand, MS (manufactured sand) is characteristic of rough particle and angular, with a large amount of stone dust and lithofacies diversity.