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SU1760523A1
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Method of treating radiographic films
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RU1783073C
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Method of making foundation pit
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SU1758142A1
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Device for underwater filling of bank
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SU1760228A1
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Method for joining polyethylene to steel tubes
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RU1781500C
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Method of closing pipe line at given location in its testing or repairing
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RU1770252C
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Load gripper
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RU1791821C
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Summation rule
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RU1769846C
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Device for assembling end-face cleaning tool from wire cuttings
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RU1776466C
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Machine for cleaning outer surface of pipeline
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SU1748046A1
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Pipe welded joint ultrasonic test method
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SU1756727A1
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Method of shutting-off pipe line
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RU1780970C
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Flux-cored welding electrode
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RU1796287C
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Machine for cleaning ring pipeline joints
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SU1718298A1
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Stereoscopic x-ray unit
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SU1745820A1
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Working tool of wheel-type trenching machine
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SU1738874A1
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Method for pipeline rust protection
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RU1788379C
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Heat insulation method for tubes
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SU1740856A1
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Device for locating defects in pipe line
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SU1724731A1
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Corrosion-resistant module of pipe line for sections at increased dynamic loads
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SU1772507A1
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Pipe weighting compound
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