目的探讨山东乐陵产金丝小枣和大枣中微量元素的含量。
Objective: To discuss the contents of trace elements of in zizyphus jujube and big jujube Laoling Shandong.
乐陵市建业五金工具有限公司位于中国金丝小枣之乡- - -山东省乐陵市，风光秀丽。交通便利。
Leling Jianye Hardware Tools co., Ltd. is located in Leling City, Shandong Province, enjoying convenient transportation.
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