Frame 6 alignment with ducting & turbine, LGB compartment roofing off?

أفضل جواب: Using a fire damper is NOT related to the type of the duct it is related to the smoke control management ... الإطلاع على المزيد

أفضل جواب: - Prefer to make at night after sunset, if not you have to close both ends. - Prepare a good movable ligh ... الإطلاع على المزيد

أفضل جواب: Thanks for the invite, I leave the answer to the experts الإطلاع على المزيد

أفضل جواب: <p>BS476 class7</p> الإطلاع على المزيد