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广东省:机械化操作的拖拉机回砂车。山东省:马拉圆盘回砂匀砂器。贵州省:畜力多犁拌合器。
Guangdong Province: mechanized operation of the tractor sand back car. Shandong Province: Mara disk sand back sand evenly. Guizhou Province: animal husbandry and more plow mixer.