Update installation method from Laidishine

Recently, we took the installation samples to the shelf factory again to implement the program, on-site explanation of the installation method; the two sides together to discuss, put forward suggestions, and once again refine the length of the program and other dimensions; including the transformer placement position, conductive slot out of the line position, as well as the size of the shelf spacing and so on. Many times on-site confirmation and discussion, and strive to provide the most convenient method for the customer and the shelf factory. Realize mutual benefit and win-win.