Hellow guys, Welcome to my website, and you are watching Двухтрубная система отопления, разные схемы (схема Тихельмана). and this vIdeo is uploaded by Марат Ишмуратов at 2015-12-21T11:11:18-08:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.