The following video is about the design of channel section purlin.

1. For the design of industrial or I section purlin check the link given below:
[ Ссылка ]

2. For the parts of truss Check out the following link:
[ Ссылка ]

3. Check out this link for the design of circular column
[ Ссылка ]

4. For the design of staircase as per is 456:2000.
[ Ссылка ]

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