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and various combinations. Specifications of the products are3orifices, 4orifices, 5 orifices, 6 orifices and 7orificesetc.which can deposit cables of different calibers. It can alsotransit and fit together with the former concrete pipes andcorrugated pipes freely. What′s more, it also equippedwith corresponding auxiliaries such astie-in, end cap, tightening belt special glue water and mendingpart etc,so that it is very convenient to construct andoperate3 Innotive structure andeconomical pipe position .The outer structure is radian and square.The configuration is trim and convenient. The pipe position thatthey occupies are small, which is 10%compared with concrete pipeposition. The excavation is small so it can efficiently economizeunderground pipe position in cities; besides it pose littleinfluence on traffic and cityplanning.
