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Qingzhou Yongsheng Sand-digging Machinery Co., Ltd. (former Qingzhou Yongsheng Dredging Machinery Co.,Ltd) established in 1990, it is the first professional manufacturer which develops and produces sand-digging machinery, sand making machinery, dredging machinery, .mineral.processing machinery in Qingzhou. Since 1990, we have been the scientific and technological innovation as new concept, and constantly improving the product and innovative. Great satisfaction and continual improvement of customer dem...
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