Russian standards
Two lay multistrand low-twisting rope type LK-O and LK-P construction 12x7(1+6)+6x19(1+6+6/6)+1 o.c. Gauge
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Knee rack-and-pinion-operated jigs with tapered clamp. Design
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Knee rack-and-pinion-operated jigs with air-actuated clamp. Design
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Basic norms of interchangeability. Metric thread for instrument-making industry. Diameters and pitches
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