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Shandong Chengya Mining Machinery Co., Ltd. is located in Qingzhou City, Shandong Province, one of the ancient nine states. Its main products include large, medium, and small wheeled sand washing machines, bucket sand washing machines, spiral sand washing machines, crushing sand production lines, sea sand desalination equipment, gold washing equipment, environmental protection filter presses, dehydration screens, fine sand recycling machines, sand field conveyors, mobile water washing equipment, and more than 50 varieties in ten series. The products are widely used in sand fields, mines