UA98898U - Device for cleaning the internal surface of pipes of oil and gas wells from hydrate deposits and smoloparafinovyh and traffic "7-tos"
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Device for cleaning the internal surface of pipes of oil and gas wells from hydrate deposits and smoloparafinovyh and traffic "7-tos"
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UAU201412877U2014-12-012014-12-01Device for cleaning the internal surface of pipes of oil and gas wells from hydrate deposits and smoloparafinovyh and traffic "7-tos"
UA98898U
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