Russian standards PDF
Full form screw plug-gauges for pipe cylindrical threads from 4'up to 6' nominal diameter. Construction and basic sizes
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Truncated from screw ring-gauges for pipe cylindrical threads from 4' up to 6' nominal diameter. Construction and basic sizes
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Semiconductor diodes. Total series equivalent resistance measurement methods
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Reference diodes. Methods for measuring differential resistance
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Boring holders for an angled screw fastening of a cutting tool for turret-lathes. Design and dimensions
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