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西德Emil Eberspacher厂制成了一种能够节约劳动力的处理填充砂(背砂)的机械投备(见附图)。机器主要是由提升机和松砂机粗成,包括了处理填充砂所
The Emil Eberspacher plant in West Germany created a labor-saving mechanical preparation for the filling of sand (backslides) (see photo). The machine is mainly made of hoist and loose sand machine, including the treatment of filling sand