Improvement of drainage system. In this video we show how to install precast u-drain start from delivery of material, setting out the proposed alignment, excavation, installation and backfilling work until completion. Anyway thanks for watching and see you in next video. Don't forget to like and subscribed.
Music in this video:
Thanks to YouTube Audio Library
Design Tools:
- Snappa: [ Ссылка ]
- Canva: [ Ссылка ]

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