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PROCESSES TO EXTRACT, AND TO EXTRACT AND REPLACE A GRAVITY WEDGE, AND GRAVITY WEDGE FOR A WITHOUT RAILWAY WAGON CONNECTION
PROCESSES TO EXTRACT, AND TO EXTRACT AND REPLACE A GRAVITY WEDGE, AND GRAVITY WEDGE FOR A WITHOUT RAILWAY WAGON CONNECTION
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机译:在没有铁路货车连接的情况下提取,提取和更换重力楔块和重力楔块的过程
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摘要
A gravity wedge shim includes a cavity and aperture at the top thereof and a lifting tool is extended through an opening in a sill ceiling above the wedge, inserted into the aperture and twisted so as to engage the wedge for lifting same.
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