可逆式锤式破碎机设计毕业设计_百度文库2022-08-24
Has installed the automatic dust exhaust apparatus on the black eraser, it will be the chalk ash which will wipe off using the air blower principle att racts to in the black eraser attire ash pit, will install the ash pit is does with the net, might concentrate the inhale draw in dust in here, many has been possible to take falls over, designs the lattice the attire ash pit to be
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