We can meet all the specifications that you requestsed.The diameter of the tube is 10cm.
In the meanwhile i also came to noticed that the total thickness was required to be 100cm by the test report.As you know the thickness of the wood board is 30cm,so it's impossible to make the thickness to be 100cm even with the glue on it.
As for the problem about wood board is easy to come off from the wall,it has something to do with its thickness.