45# I-beam is a kind of steel with special cross-section shape, its shape is similar to the English letter "work" and named. The cross-section of an I-beam is in the shape of an I-beam, consisting of a narrow rectangular section and two outwardly protruding flanges whose width is greater than the height of the web
35# I-beam is a kind of steel with special cross-section shape, its shape is similar to the English letter "work" and named. The cross-section of an I-beam is in the shape of an I-beam, consisting of a narrow rectangular section and two outwardly protruding flanges whose width is greater than the height of the web
20# I-beam is a kind of steel with special cross-section shape, its shape is similar to the English letter "work" and named. The cross-section of an I-beam is in the shape of an I-beam, consisting of a narrow rectangular section and two outwardly protruding flanges whose width is greater than the height of the web
10# I-beam is a kind of steel with special cross-section shape, its shape is similar to the English letter "work" and named. The cross-section of an I-beam is in the shape of an I-beam, consisting of a narrow rectangular section and two outwardly protruding flanges whose width is greater than the height of the web
Q345B I-beam is a kind of steel with special cross-section shape, its shape is similar to the English letter "work" and named. The cross-section of an I-beam is in the shape of an I-beam, consisting of a narrow rectangular section and two outwardly protruding flanges whose width is greater than the height of the web
SS400 I-beam is a kind of steel with special cross-section shape, its shape is similar to the English letter "work" and named. The cross-section of an I-beam is in the shape of an I-beam, consisting of a narrow rectangular section and two outwardly protruding flanges whose width is greater than the height of the web
SM490 I-beam is a kind of steel with special cross-section shape, its shape is similar to the English letter "work" and named. The cross-section of an I-beam is in the shape of an I-beam, consisting of a narrow rectangular section and two outwardly protruding flanges whose width is greater than the height of the web
I-beam is a kind of steel with special cross-section shape, its shape is similar to the English letter "work" and named. The cross-section of an I-beam is in the shape of an I-beam, consisting of a narrow rectangular section and two outwardly protruding flanges whose width is greater than the height of the web
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