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device for abstuetzung and tensioning of gebirgsankern
device for abstuetzung and tensioning of gebirgsankern
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机译:吉卜力山根的固定和张紧装置
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摘要
The device for supporting and prestressing rock bolts consists of at least one bolt plate (1) with a prominence in the form of a conical surface (2) with a bore whose wall (4) is tapered. The nut (5) fitting into this bore is likewise tapered in the area of the seating surface (7). IMAGE
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