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Usually everyone thinks that there is nothing special to tell about sewerage and everything is clear. But still, there are some points that raise questions and in this video I will try to answer them. In what cases can you install a 90 or 45 degree bend or tee? Order a project: tel. +7 917 437-20-96 Marat Ishmuratov Email:: [email protected] Website: https://marikoklimat.ru/ Subscribe to Telegram: https://t.me/marikoklimat Subscribe to Vkontakte: https://vk.com/id59297661