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Method of and device for tightness test of hollow items
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Hand impact tool
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Hand impact tool
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Plain bearing
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Leakage tester
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Rolling bearing
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Peristaltic pump
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Vacuum workpiece clamp
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Adjustable internal gauge
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Physics training device
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Device to determine hardness of materials
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Diffusion welding machine
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Method and apparatus for checking air-tightness of articles
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Positive-displacement pump
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Friction clutch
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Drainage
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Vortex pipe
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Method of assenmbling heat-shrinkage tube joints
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Positive-displacement pump
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Device for thermomechanical testing of materials
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