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矿石或矸石溜井、贮矿仓常常使用风动闸门。它的起动气缸加工精度高,结构也复杂,尤其是缸体和球形三通逆止阀,一般厂矿是加工不了的。
Ore or gangue chute, storage tanks often use the wind gate. Its starting cylinder machining accuracy, structure is also complex, especially the cylinder block and ball three-way check valve, the general factory can not be processed.