7.
Is the scaffold horizontal and vertical? Is the base and/or scaffold screw firmly in contact with the pad and pole?.
$72million! During the construction of Meiyi building, a 19-year-old Chinese woman was killed by a crane, and her family was compensated
[builder] eight key points of prefabricated construction: example demonstration, a must for beginners!
At the highway construction site, workers inadvertently dug up an ancient tomb, but it was not human
