7.5 square meters of toughened glass floor C steel support costs about how much
Do not want to talk about the width of the beam, how to calculate the beam width of the cross section of the vertical spacing required?
1.4 m high concrete beam, along the beam to the vertical bar spacing is not greater than 500mm.
Please confirm that the title of the 1.4 meter high beam span of up to 40 meters! Is it concrete? This is more than a certain scale of the greater risk of sub projects, the need for the preparation of special security construction program after the implementation of expert demonstration. The project should be clear, not a joke oh!
