γ-type alumina is insoluble in water, but soluble in strong acid or strong alkali solution, and it will be converted into α-type alumina when it is heated to 1200°C. γ-type alumina is a porous
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The Printed Circuit Board press line consists of a number of subsystems that are freely placed in the space, including the oil hydraulic power system, the heat medium oil temperature control system,
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