HATCH OF INSPECTION PIT OF UNDERGROUND ENGINEERING COMMUNICATIONS
A hatch of inspection pit of underground engineering communications has a cover and body. The cover has round form, the upper surface of the cover is arranged as flat and has relief made of bosses. On the upper surface of the cover in its center there is a site for marking restricted by circular lug...
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Format: | Patent |
Sprache: | eng ; rus ; ukr |
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